Session Index

Optical Waveguides and Communications

Optical Waveguides and Communications I
Thursday, Dec. 3, 2020  13:15-14:45
Presider: Prof. Yung-Jr Hung
Room: 6AB Room 227
Notes:
13:15 - 13:45 Manuscript ID.  0814
Paper No.  2020-THU-S0201-I001
Invited Speaker:
Boon S. Ooi

Single-Frequency Visible Laser and Vertical Cavity Surface Emitting OAM Laser for Optical Wireless Communication
Edgars Stegenburgs;Andrea Bertoncini;Jorge A. Hulguin-Lerma;Meiwei Kong;Abderrahmen Trichili;Omar Alkhazragi;Xiaobin Sun;Mohd Sharizal Alias;Tien Khee Ng;Mohamed-Slim Alouini;Carlo Liberale;Boon S. Ooi

High spectral-capacity optical wireless communication is envisaged for beyond 5G network using laser beam, which requires further advances in laser technology. In this talk, we discuss the recent achievement of single-frequency 480-nm and 514-nm visible lasers of 10.5 Gbit/s, and 940-nm VCSEL with integrated spiral-phase-plate at 1.8 Gbit/s.

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13:45 - 14:15 Manuscript ID.  0819
Paper No.  2020-THU-S0201-I002
Invited Speaker:
Silvano Donati

Developing 3-D Imaging and LiDAR Sensors: Problems and Technologies
Silvano Donati;Wood-Hi Cheng

In this paper we discuss the technologies developed for 3-D imaging-taking cameras, also variously called 3-D rangefinders, telemeters or LiDAR, and their applications to a number of scientific, industrial, biomedical and automotive fields.
We start from the description of the basic configurations used to build single-point laser rangefinders, that is, (i) triangulation, (ii) time-of-flight and (iii) interferometry, and then analyze the system requirements on parameters like: covered range, illumination power, detector noise, and stray light.
First, we illustrate how triangulation offers a relatively simple optical setup and is capable of reaching sub-mm resolution on distances up to several meters, provided the parallax base of observation is sizeable, and also yields the 3-D capability with either fan-beam scanning or image processing of the camera data. Variants of triangulation like Moire' contouring and spot array projection will also be mentioned.
Second, we analyze time-of-flight (ToF) rangefinders, that can take two different formats according to the choice of the source, i.e., the pulsed and the sine-wave techniques. Common to both are the power budget and the system equations, that we will briefly outline to calculate the achievable resolution, expressed as a characteristic time divided by the square root of received photons, where time is the pulse duration for the pulsed and the inverse pulsation frequency for the sine-wave. We consider development issues for ToF telemeters, like single vs double optics, choice of frequency, ambiguity range and index-of-refraction correction, and thereafter we present some examples of applications to topography and geodesy.
Third, we briefly report on interferometric pickup of 3-D distance data, showing that the main source of error – the speckle pattern phase error introduced by a normal diffusing target surface – can be tamed down to 5-10 micrometer by appropriate choice of the spot size and distance.
Moving on to 3-D imaging, the limitations obtained by simple, scanning beam extension of single-element rangefinders are addressed to motivate the quest for image-level processing of rangefinder data, that is, the development of a 3-D smart pixel camera in which each pixel integrates, along with the detector, all the functions of a full rangefinder.
Then we describe two approaches to smart-pixel 3-D developed in the frame of European Community Research programs: (i) the Megaframe (MF) pulsed ToF, based on an SPAD array and a smart pixel incorporating detector, preamp, TAC, logic selector, line driver, memory, and voltage converter integrated in a single 50x50 sq-micron pixel of a 128x128 array, and (ii) the sine-wave detector-demodulator (swDD) with a switching element integrated with a pin photodiode to realize the 4-phase demodulation of the delayed sine-wave received at the photodetector on a 120x160 pixel array. The fill-factors of the two approaches are 8% for the MF – requiring a micro-lens array for a recovery to a reasonable 50-60%, and 24 % for the swDD, while the chip size is 16x16 sq-mm and 2.5x2.5 sq-mm, respectively.
Finally, we consider in some detail the application of 3-D rangefinders to the automotive field, as anti-collision sensors as well as autonomous driving. The ToF is favored for best matching to performance (distance and accuracy) specifications, while a slow-pulse version of the pulsed telemeter is preferred to satisfy the laser safety requirement (1.05-mW at 900 nm and 10-mW at 1500 nm). An example of LiDAR integrated in the car headlight will be presented.
References
S. Donati: "Electro-Optical Instrumentation - Sensing and Measuring with Lasers" a volume of XVIII+425 pages, bound, 2004, Prentice Hall, USA, ISBN 013 0161610-9.
G.-F. Dalla Betta et al.: "Design and Characterization of Photonic Demodulators in 0.18-µm CMOS Technology", IEEE Trans. Electron Devices, vol.58, (2011), pp.1702-1709.
S. Donati, G. Martini, E. Randone: "Improving Photodetector Performance by means of Micro-optics Concentrators", IEEE J. Light. Techn., vol.29, 2011, pp.661-665.
C.-N. Liu et al: "LiDAR-Embedded Smart Laser Headlight Module Using a Single Digital Micromirror Device for Autonomous Drive" Proc. CLEO 2020, San Jose May 11-15, conference in streaming, paper ATu3T.2.


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14:15 - 14:30 Manuscript ID.  0501
Paper No.  2020-THU-S0201-O001
Rui Lin Chao
Three-Port Optical Phase-Shifters and Modulators with Ultra-High Modulation Efficiency, Positive RF-Linking Gain, and Low Residual Amplitude Modulation
Rui Lin Chao;Zohauddin Ahmad;Jin-Wei Shi

Three-port PNP-BJT configuration phase-shifter is demonstrated. Carrier injection induces more conspicuous changes of refractive index hence exhibits small Vpi (0.18V), Ppi(0.21mW). Fast rise/fall time (~1ns), small residue-amplitude-modulation (RAM) are also recorded (0.18dB). +4.0 dB RF-linking gain under dynamic operation proves three-ports to be more efficient than two-port counterpart.

 
 
14:30 - 14:45 Manuscript ID.  0065
Paper No.  2020-THU-S0201-O002
Ika Novitasari
Design of Hybrid Active III-V/SOI Photonic Devices Based on Lateral GACC Methods
Ika Novitasari;San-Liang Lee

Designing hybrid photonic devices with lateral GACC methods allows to integrate III-V and SOI materials by a standard active structure, a 220 nm Si waveguide, and an adhesive bonding layer. 87% coupling efficiency is demonstrated at 1550 nm wavelength.

 
 


Optical Waveguides and Communications

Optical Waveguides and Communications II
Thursday, Dec. 3, 2020  16:20-17:50
Presider: Prof. Charles Tu
Room: 6AB Room 227
Notes:
16:20 - 16:35 Manuscript ID.  0474
Paper No.  2020-THU-S0202-O001
Naseem .
Award Candidate
In0.52Al0.48As Based High-Speed and Wide Dynamic Range Avalanche Photodiode for Coherent Lidar Application
Naseem .;Yan-Min Liao;Jin-Wei Shi

A high-sensitivity and a high-power photo-receiver is preferred in coherent lidar system. In this work, we demonstrate top-illuminated APDs, which can simultaneously exhibit low excess noise (k<0.14) and wide 3-dB bandwidth (16GHz) with high responsivity (5.8A/W) under the operation at saturation output (5 mA).

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16:35 - 16:50 Manuscript ID.  0469
Paper No.  2020-THU-S0202-O002
Ya-Ting Liang
Award Candidate
Monolithically Integrated Opto-Electronic SR Latch Using Light Emitting Transistors
Ya-Ting Liang;Yun-Ting Huang;Chao-Hsin Wu

We have developed an opto-electronic SR latch using light-emitting transistors (LETs) on a GaAs substrate via a monolithically integrated fabrication process. Taking advantage of dual-output (electrical and optical) characteristics, it can transmit or store information more efficiently and be applied to build opto-electronic integrated circuits (OEICs).

 
 
16:50 - 17:05 Manuscript ID.  0485
Paper No.  2020-THU-S0202-O003
Fang-Jyun Liou
Award Candidate
Towards 1.25 Gbit/s High-Speed Green InGaN/GaN Micro-Light-Emitting Diodes Array for Wireless Optical Communication
Fang-Jyun Liou;Guan-Hao Chang;Yu-Chien Hsu;Hsin Chiang;An-Chen Liu;Sung-Wen Huang Chen;Hao-Chung Kuo

Semipolar (20-21) micro-LEDs were manufactured using improved epitaxy and chip process approaches. The highest modulation bandwidth up to 1.125 GHz and 1.25 Gbit/s data rate was achieved with a high polarization ratio. These results suggested an excellent transmission capacity of green semipolar (20-21) μLEDs in visible light communication (VLC) applications.

 
 
17:05 - 17:20 Manuscript ID.  0770
Paper No.  2020-THU-S0202-O004
Yen-Hsiang Chang
Award Candidate
Photonic Integration of EAM and SOA by Quantum well intermixing through High Oxygen Content Dielectric Film
Yen-Hsiang Chang;Yi-Jen Chiu

Impurity-Free Vacancy Diffusion (IFVD) quantum well intermixing was performed in high oxygen concentration SiOx through SCF treatment, enabling the photonic integration. Electroabsorption modulators (EAM) integrated semiconductor optical amplifier (SOA) were fabricated, realizing 10dB extinction ratio and optical gain of 11 dB.

 
 
17:20 - 17:35 Manuscript ID.  0423
Paper No.  2020-THU-S0202-O005
Dong Yang
Award Candidate
Single-Mode High-Speed 850 nm VCSEL Operated at 50 Gb/s for Pre-emphasis NRZ-OOK after 100-m GI-SMF transmission
Dong Yang;Guan-Hao Chang;Hsien-Yao Tseng;Shu-Wei Chang;Hao-Chung Kuo

In this study, a single mode and high speed vertical-cavity surface-emitting laser (VCSEL) is designed and fabricated. The device exhibits 26.5 GHz 3-dB E-O bandwidth and 50 Gb/s for pre-emphasis NRZ-OOK transmission in back-to-back and 100m GI-SMF links with eye-opening, which is extremely fast for single mode 850nm VCSELs.

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17:35 - 17:50 Manuscript ID.  0657
Paper No.  2020-THU-S0202-O006
Hsun-Yuan Chi
Award Candidate
2D Beam Steering through Silicon Ribbon Grating Array
Hsun-Yuan Chi;Ting-Sheng Lin;He Jhang;Jhih-Jia Kang;Shih-Hsiang Hsu

A silicon ribbon grating array with variable linewidths on the dual-beam optical phase array is designed and demonstrates the horizontal and vertical scanning ranges as 90 and 30 degrees, which is superior to the previous dual-beam system. The grating lobe and crosstalk are reduced by nearly 6-dB and 3-dB, respectively.

 
 


Optical Waveguides and Communications

Optical Waveguides and Communications III
Friday, Dec. 4, 2020  13:10-15:40
Presider: Prof. Silvano Donati
Room: 6AB Room 725
Notes:
13:55 - 14:25 Manuscript ID.  0803
Paper No.  2020-FRI-S0203-I001
Invited Speaker:
Cheng-Ling Lee

Ultracompact Fiber Fabry-Perot Interferometers and Their Sensing Applications
Cheng-Ling Lee;Cheng-Chuan Liu

In this work, the investigation of ultracompact fiber Fabry-Perot interferometers (FFPIs) and their sensing applications have been discussed. The proposed FFPIs are based on a tiny Fabry-Perot microcavity within a general single-mode fiber (SMF) which can achieve the sensing advantages of high sensitivity, good repeatability, effectiveness and miniature structure. Many ultracompact FFPIs have been utilized as different kinds of inline fiber optic sensors for measuring various parameters. Advanced sensing characteristics of the developed FFPIs are experimentally determined and analyzed to demonstrate the effectiveness.

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14:25 - 14:40 Manuscript ID.  0669
Paper No.  2020-FRI-S0203-O001
Chin-Hao Tseng
10-Gb/s W-Band Wireless Links Using Optically Injected Semiconductor Lasers at Period-One Dynamics
Chin-Hao Tseng;Chun-Ting Lin;Sheng-Kwang Hwang

This study investigates millimeter-wave generation and modulation using an optically injected semiconductor laser operating at period-one (P1) dynamics when subject to comb-like optical injection. 10-Gb/s 32-QAM OFDM data are added onto the stabilized 93-GHz millimeter-waves by directly modulating the injected laser for W-band wireless links.

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14:40 - 14:55 Manuscript ID.  0027
Paper No.  2020-FRI-S0203-O002
Chao-Yu Feng
An 800-Gb/s/200-m FSO Communication with WDM-PAM4 Scheme and SLM-Based Beam Tracking Technology
Chao-Yu Feng;Agustina Nainggolan;Hsin-Mao Hsia;Hai-Han Lu

We demostrated, a 800-Gb/s PAM4 based FSO communication with 200-m free-space transmission by integrating a WDM scheme and adopting SLM-based beam tracking technology, the transmission capacity of the FSO communications is remarkably increased with a total capacity of 800 Gb/s.

 
 
14:55 - 15:10 Manuscript ID.  0345
Paper No.  2020-FRI-S0203-O003
Yueh-Heng Lu
Logic Gates formed by Optical Neurons
Yueh-Heng Lu;Chii-Chang Chen

In this work, the software for optical fiber communication system is used to investigate an optical system based on the echo-state networks to form the logic gates. The gates can be used to recognize the input signals.

 
 
15:10 - 15:25 Manuscript ID.  0486
Paper No.  2020-FRI-S0203-O004
Bo-Hong Zheng
Cascaded Fiber-Optic Interferometers for Multi-Perimeter-Zone Intrusion Detection with a Single Fiber Used for Each Defended Zone
Likarn Wang;Yuan-Hung Lin;Bo-Hong Zheng

A new fiber-optic perimeter intrusion detection system employing only one single-mode fiber as disturbance sensor for each perimeter zone is presented. Oscillation signals generated through interference between lights from two resonators, i.e., a linear laser cavity and an extended resonator, were used for determining intrusion for each defended zone.

 
 


Optical Waveguides and Communications

Optical Waveguides and Communications S
Friday, Dec. 4, 2020  13:10-15:40
Presider: Prof. Chi-Wai Chow
Room: 6AB Room 227
Notes:
13:10 - 13:40 Manuscript ID.  0828
Paper No.  2020-FRI-L0203-I001
Invited Speaker:
Yung-Jr Hung

Fabrication-tolerant silicon photonics cascaded MachZehnder interferometers for WDM (de)multiplexing
Yung-Jr Hung;Tzu-Hsiang Yen;Tai-Chun Wang;Chia-Chen Chou;Zhan-Wen Song

Four-channel 20-nm-spaced WDM (de)multiplexer based on fabrication-tolerant
cascaded Mach-Zehnder interferometer configuration is demonstrated. Such unique device
design greatly reduces the process-induced spectral shift from 15 nm to <1 nm, verifying the
efficacy of the proposed design methodology for practical WDM applications.


 
 
13:40 - 14:10 Manuscript ID.  0833
Paper No.  2020-FRI-L0203-I002
Invited Speaker:
Yinchieh Lai

Microwave Photonics and Silicon Photonics Integrated Technologies and Applications
Yinchieh Lai;Jyehong Chen;Jin-Wei Shi;Chun-Ting Lin;Yi-Jen Chiu

Our recent research progresses on the integrated technologies and applications of microwave photonics and silicon photonics will be reviewed, including the development of new photonic components/modules as well as system applications.

 
 
14:10 - 14:25 Manuscript ID.  0532
Paper No.  2020-FRI-L0203-O001
Nai-Hsiang Sun
Analysis of Fiber Bragg Gratings with Two-Grating Sections by Floquet-Bloch Theory
Nai-Hsiang Sun;Yu-Cheng Hsueh;Jung-Sheng Chiang

The reflectivity of fiber Bragg gratings with two-grating sections, consisting of two grating periods, is simulated. When the difference of two gratings periods is 0.000014μm, the reflectivity spectrum of FBGs presents similarity of the reflectivity of two single-gratings FBGs except for the phase shift phenomenon.

 
 
14:25 - 14:40 Manuscript ID.  0033
Paper No.  2020-FRI-L0203-O002
Shuo-Yen Tseng
Polarization Independent Silicon-on-Insulator 3-dB Couplers using Adiabaticity Engineering
Yi-Lin Wu;Guan-Xun Lu;Shuo-Yen Tseng

By engineering the adiabaticity distribution using a single control parameter, we obtain shortcuts to adiabaticity (STA) in optical waveguides for multimode systems. The strategy is applied to the design of a polarization-independent 3-dB coupler based on silicon. The coupler has high tolerance to fabrication errors and an ultra-broad bandwidth.

 
 
14:40 - 15:10 Manuscript ID.  0835
Paper No.  2020-FRI-L0203-I003
Invited Speaker:
Tien-Tsorng Shih

1.6Tb/s Silicon Photonics Transmitting Chip and Receiving Chip
Tien-Tsorng Shih;Ding-Wei Huang;Chao-Hsin Wu;Jian-Jang Huang;Gong-Ru Lin;Yaw-Dong Wu;Po-Jui Chiang;Shu-Wei Chang;Hao-Chung Kuo;Jau-Ji Jou;Chun-Nien Liu;Shuo-Yen Tseng;Ting-Jen Hsueh

Due to the huge demand of Internet of Things (IOT) and cloud service, the transmission capacity inside the data center is highly required. The 100Gb/s transmission is deployed widely and the 400Gb/s transmission is growing inside the data center. Moreover, the solution of 800Gb/s transmission is discussing now. To achieve the bandwidth requirement, a novel transmission structure of four wavelengths (λ) by four single mode fibers (SMF) is proposed and the aggregated transmission capacity is up to 1.6Tb/s to satisfy the bandwidth demand of data center in the next decade. To realize this novel idea, the silicon photonics technology is the best candidate due to the advantage of integration. In this presentation, a silicon photonics transmitting (Tx) chip by integrated more than forty devices is designed. Total sixteen optimized Mach-Zenhder Modulators (MZM) are built and a special 4x16 Array Waveguide (AWG) Optical Multiplexer is included in the Tx chip. External high power DFB laser diodes are packaged by the edge to inject the light into the Tx chip. The total optical loss is around 30dB which will be improved by a further process and structure optimization. A single MZM is tested to demonstrate the 100Gb/s PAM4 transmission. In the receiving side, sixteen Ge photodiodes is integrated on the silicon photonics receiving chip. At the end of four 1x4 AWG optical De-multiplexers. A 50GHz bandwidth of the Ge photodiode is measured to ensure the 100Gb/s PAM4 receiving. In general, the feasibility of this novel 4λ x 4 SMF transmission structure and the possibility of this Tx optical engine and Rx optical engine are shown and will be a potential candidate in the future data center in the next decade.

 
 
15:10 - 15:40 Manuscript ID.  0837
Paper No.  2020-FRI-L0203-I004
Invited Speaker:
Ming-Chang Lee

Integrated Si Photonics for Implementing mmWave FiberWireless Phased Array Antenna
Chen-Yu Wu;Shen-Chen Tsai;Jin-Wei Hsu;Yu-Wei Cheng;Chia-Chan Tsai;Wen-Jie Huang;The Anh Nguyen;Hsiang-Chih Kao;Yi-Chun Liu;Kai-Ming Feng;Ming-Chang Lee

A miniaturized mmWave fiber-wireless phased array antenna implemented by heterogeneous integration of Si photonics, CMOS RF circuits and patch antenna array is presented for 5G mobile communication. We demonstrate a 28-GHz, 16-QAM OFDM signal transmitted through this module with EVM 9.52%.

 
 


Optical Waveguides and Communications

Poster Session I
Friday, Dec. 4, 2020  15:40-17:30
Presider: Prof. Chun-Nien Liu
Room: 6AB Courtyard
Notes:
Manuscript ID.  0514
Paper No.  2020-FRI-P0201-P001
Chia-Ming Liu
Award Candidate
Developed chromium-doped fibers with high quality and high fluorescence characteristics
Chia-Ming Liu;Chia-Ling Tsai;Yann-Horng Chen;Ping-Hsuan Yang;Chun-Nien Liu;Sheng-Lung Huang;Wood-Hi Cheng

The higher fluorescence intensity for a 300-nm broadband single-mode Cr-doped crystalline core fiber (SMCDCCF) are demonstrated with and without coating and thermal annealing, respectively. The 31% fluorescence improvement was mainly due to the Cr4+-concentration up to 1.2 times during coating and thermal annealing process.

 
 
Manuscript ID.  0082
Paper No.  2020-FRI-P0201-P002
Wei-Yao You
Long-Reach Ring-Type WDM-PON with Rayleigh Backscattering Beat Noise Alleviation
Wei-Yao You;Jhao-Ren Chen;Chien-Hung Yeh;Wen-Piao Lin;Chi-Wai Chow

A new designed ring-based wavelength-division-multiplexing passive (WDM) access network is used to avoid Rayleigh backscattering (RB) beat noise. In the demonstration, the 8x10 Gbit/s on-off keying (OOK) WDM channels are used to support the fiber transmission length of 105 km for symmetric downstream and upstream connections without dispersion compensation.

 
 
Manuscript ID.  0733
Paper No.  2020-FRI-P0201-P003
Shao Hung Yu
Novel DFT/IDFT-free scheme for Spread OFDM signals with sub-Nyquist sampling ADCs in MIMO RoF system
Shao Hung Yu;Yi Jun Cai;Hao-Hsiang Chang;Chun-Ting Lin;Chia Chien Wei;Sien Chi

In order to simplify the receiver, we propose the novel algorithm, which is time interleaved frequency division multiple access in the 2×2 MIMO 60 GHz RoF system. Moreover, the receiving section can receive time domain signals without DFT/IDFT processing for demodulation.

 
 
Manuscript ID.  0451
Paper No.  2020-FRI-P0201-P004
Yi-Chien Wu
Miniaturized High-Power White-Lighting Module with Mixing R/G/V/Y Beams for Naval Li-Fi System
Yi-Chien Wu;Chia-Yu Su;Gong-Ru Lin

A high-power RGV-LDs+Y-LED mixed white-lighting module with W×L×H = 6×5.4×2 cm3 is demonstrated with the maximal transmission data rate of 21.2 Gbit/s. Moreover, the module provides an illuminance of 12800 lux over 0.5 m.

 
 
Manuscript ID.  0455
Paper No.  2020-FRI-P0201-P005
Shih-Chun Kao
Award Candidate
Enhanced polarization data demultiplexing at 100-Gbit/s in micro-ring waveguide add/drop filter
Shih-Chun Kao;Zih-Chun Su;Gong-Ru Lin

Polarized data demultiplexing in silicon carbide micro-ring waveguide resonator is performed by enhancing its polarization distinguished notch transmittance for discriminating orthogonally polarized 100-Gbit/s 16-QAM-OFDM and 50-Gbit/s NRZ-OOK optical data streams.

 
 
Manuscript ID.  0513
Paper No.  2020-FRI-P0201-P006
Liu Chan Chin
Study of Micro-lensed Fiber for Silicon-Photonics Chip to Improve Coupling Efficiency
Liu Chan Chin;Tu Jim Han;Liu Chun Nien;Shih Tien Tsorng;Lin Gong Ru;Cheng Wood Hi

We report and demonstrate the micro-lensed from Si-photonics chip coupling to single-mode fiber employing automatic grinding and calibrated spin-on-glass coating techniques. A high coupling efficiency of 54.2% with ±0.5μm misalignment tolerance was achieved.

 
 
Manuscript ID.  0739
Paper No.  2020-FRI-P0201-P007
Zheng-Wei Huang
V-band 2×2 MIMO OFDM-RoF System Employing I/Q Volterra Compensation Algorithm
Zheng-Wei Huang;Zhen-Xiong Xie;Bo-Jiun Lin;Pin-Xyuan Ding;Chia-Chien Wei;Chun-Ting Lin

We demonstrate 2×2 MIMO 60-GHz RoF system with I/Q Volterra nonlinear compensation algorithm. The proposed system not only improves data rate up to 81.37Gbps but also extends wireless distance to 42 meters with data rate of more than 70Gbps.

 
 
Manuscript ID.  0083
Paper No.  2020-FRI-P0201-P008
Guan-Hong Li
Utilizing Multiple-Fiber-Ring Design for 60 nm Tunability Fiber Laser with Single-Longitudinal-Mode Output
Yuan-Zhe Lin;Guan-Hong Li;Hung-Wei Chang;Chien-Hung Yeh;Jing-Heng Chen;Chi-Wai Chow

We present a broadband and steady EDF multiple-ring laser by exploiting C-band EDF gain medium to achieve SLM output. The available CW tunability range from 1519.0 to 1579.0 nm. Moreover, the related output power, OSNR, SLM oscillation and stability characteristics in the presented laser have been also explored.

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Manuscript ID.  0454
Paper No.  2020-FRI-P0201-P009
Shih-Chun Kao
Enhancing Fading Tolerance with MC-CDMA in a RFoF Fiber-Wireless Convergence
Shih-Chun Kao;You-Wei Chen;Kai-Ming Feng;Gong-Ru Lin

A MC-CDMA based fiber-wireless convergence with subcarrier BER equalization is demonstrated to outperform typical OFDM data in both wireless and wired RF fading channels for supporting multi-service access network with colorless FPLD transmitters.

 
 
Manuscript ID.  0178
Paper No.  2020-FRI-P0201-P010
ZI-XUAN XU
Tunable Si3N4 Optical switch using liquid crystal claddings
ZI-XUAN XU;Chun-Ta Wang

This work demonstrates a Si3N4 optical switch based on MMI couplers connected with a Y-junction waveguide whose one arm with nematic liquid crystal claddings. The variable phase difference obtained by driving liquid crystal molecules enables redistribution of the electrical filed of TE or TM waves between two output waveguides.

 
 
Manuscript ID.  0241
Paper No.  2020-FRI-P0201-P011
Yi-Jia Huang
Broadband Silicon Nitride Polarization Beam Splitter
Yi-Jia Huang;Chun-Ta Wang

This work proposes a broadband polarization beam splitter (PBS) based on silicon nitride platform. Such a PBS with a point-symmetric cascade directional coupler exhibits a broadband operation over the entire C-band wavelength range and broad 15 dB isolation bandwidth of 95 nm, ranging from 1490 to 1585 nm.

 
 
Manuscript ID.  0604
Paper No.  2020-FRI-P0201-P012
An-Ni Sung
High-Efficiency Electro-Optically Tunable Microdisk Resonators with the Coplanar Electrode Structure
An-Ni Sung;Yan-Ting Li;Ying-Yu Wang;Chien-Hsu Chen;Tzyy-Jiann Wang

We present an innovative electro-optically tunable lithium niobate microdisk resonator with high tuning efficiency. The resonant wavelength of microdisk resonator can be effectively tuned by the designed coplanar electrode structure without the deterioration of quality factor. The tuning efficiency of the proposed device can be as high as 16.75pm/V.

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Manuscript ID.  0081
Paper No.  2020-FRI-P0201-P013
Jhao-Ren Chen
Use of FSO Signal in WDM Access Architecture to Avoid Rayleigh Backscattering Noise
Jhao-Ren Chen;Wei-Yao You;Chien-Hung Yeh;Chi-Wai Chow

We propose an integrated WDM and FSO access network to prevent Rayleigh backscattering (RB) interference effect supporting 51 km long fiber connection and 400 to 900 m free space link length. Here, a symmetric 4x10 Gbit/s OOK traffic are applied for transmitting the downstream and upstream signals simultaneously.

 
 
Manuscript ID.  0084
Paper No.  2020-FRI-P0201-P014
Yuan-Zeng Lin
Applying Self-Injected Loop for Continuous and Adjustable Single-Longitudinal-Mode Erbium Laser
Yuan-Zeng Lin;Bo-Wei Huang;Po-Ming Yen;Chien-Hung Yeh;Chi-Wai Chow

An erbium-doped fiber (EDF) dual-ring laser is investigated. To be operated at single-longitudinal-mode state, the dual-ring scheme, EDF-based saturable absorber and self-injected loop are exploited. Moreover, the output power, OSNR and output stability of the EDF laser are discussed over the available bandwidth of 1519 to 1590 nm.

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Manuscript ID.  0366
Paper No.  2020-FRI-P0201-P015
Wan-Shao Tsai
Imaging Spectral Detection of Inhomogeneous Gold Nanoparticles based on Waveguide Excitation
Yuan-Chih Hou;Li Shen;Tsong-Sheng Lay;Wan-Shao Tsai

Imaging spectra of inhomogeneous gold nanoparticles formed by thermal annealing on an edge-polished glass substrate are detected by waveguide excitation using a home-built white-light Fourier spectrometer. The measured spectral characteristics match well with the simulation results. This detection scheme can be used in simultaneously multi-point spectral detection of large-area nanostructures.

 
 
Manuscript ID.  0631
Paper No.  2020-FRI-P0201-P016
Ting-Lei, Chen
Laser Heated Polymer Fiber Fabry–Pérot Interferometers for Hot-Wire Anemometry
Ting-Lei, Chen;Hsuan-Mao Chi;Yi-Ching, Chang;Chien-Hsing Chen;Cheng-Ling Lee

We proposed a novel fiber-optic hot-wire-anemometer (HWA) based on an ultracompact hot-polymer filled airgap fiber Fabry–Perot (FFPI) interferometer with silver-mirror-reaction (SMR) that is heated by a pumping laser-diode (LD) for measuring airflow with high sensitivity.

 
 
Manuscript ID.  0695
Paper No.  2020-FRI-P0201-P017
Yan-Qing Chen
Fiber Bragg Grating Structure Noise Sensor
Yan-Qing Chen;Cheng-Yu Lin;Jeson Chen;Wen-Fung Liu

This study proposes a novel fiber Bragg grating structure-borne noise sensor for monitoring the structure-borne noise created from high-end facilities. Two different design structures including the lateral pressure and airtight structure are used for detecting structural noises.

 
 
Manuscript ID.  0234
Paper No.  2020-FRI-P0201-P018
Cheng Yeh Lin
Award Candidate
Optical vortex beam emitter based on ring resonator
Cheng Yeh Lin;Kuo Ping Chen

We demonstrate a ring resonator with multi-resonance spectrum.[1] At the resonance peaks, the optical vortex beam will be emitted by the ring resonator. One of the resonance peak is at 1557 nm which is suitable for silicon photonics optical communication.

 
 
Manuscript ID.  0280
Paper No.  2020-FRI-P0201-P019
Yi-Sheng Chen
The study of two-fold multimode waveguide reflector applied to a resonance for photonic integrated circuit
Chien-Liang Chiu;Yi-Sheng Chen;Bo-Lin Huang;Yung-Teng Chang

To design the center position of the MMI coupler makes two-fold MMI reflector to achieve a 90-degree MMI reflector. To replace the Fabry-Perot cavity with natural fracture surface reflectors at both edges. The reflectivity of the reflector is 0.5/ 0.72/ 0.85/ 1 and the reflector loss is almost 0.01.


 
 
Manuscript ID.  0742
Paper No.  2020-FRI-P0201-P020
Ping-Hsuan Ting
Award Candidate
IQ Imbalance Compensation and Bit-Loading for 60-GHz 3×3 OFDM-Based RoF MIMO System up to 114.2-Gbps
Ping-Hsuan Ting;Ping-Yao Huang;Zhen-Xiong Xie;Chun-Ting Lin

We experimentally demonstrate a 3x3 MIMO 60-GHz OFDM-RoF system, applying with I/Q imbalance compensation and adaptively bit loading procedures. The system can achieve the highest data rate of 114.2 Gbps with the corresponding spectral efficiency of 16.36 bits/s/Hz.

 
 
Manuscript ID.  0320
Paper No.  2020-FRI-P0201-P021
Wan-Shao Tsai
SU8 Polymer Bent Waveguide Sensors
Tzu-Wei Lin;Fang-Wen Sheu;Wan-Shao Tsai

SU8 polymer waveguides of linewidth 75µm and thickness 10µm with bending angles of 1 to 11 degrees covered by microfluidic channels under glucose solutions are fabricated as index sensors. Light intensity is measured through end-facet excitation of the waveguide at 632.8nm to estimate the intensity sensitivity of the sensors.

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Manuscript ID.  0727
Paper No.  2020-FRI-P0201-P022
Qi-Yi Weng
Fiber Bragg Grating Liquid-Level Sensor
Qi-Yi Weng;Cheng-Hsuan Tsai;Ming-Yue Fu;Wen-Fung Liu

This paper proposes a liquid level sensor based on the cladding-mode wavelength of fiber Bragg grating. By etching the fiber cladding layer to reduce the fiber diameter, the cladding-mode wavelength shift is used to measure the liquid-level variation.

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Manuscript ID.  0567
Paper No.  2020-FRI-P0201-P023
Jhih-Heng Yang
A MMW-PDM-RoF Coordinate Multi-Point (CoMP) Transmission System for Mobile Fronthaul with a Polarization-Tracking-Free RU Design
Jhih-Heng Yang;Jian-Kai Huang;Yu-Yang Lin;Jin-Wei Hsu;Kai-Ming Feng

A PDM-RoF mechanism is firstly experimentally demonstrated for MMW coordinate multi-point transmission system with a polarization-track-free RAU design. Without additional latency for PDM demultiplexing, we evaluate various coordinate multi-point joint transmission scenarios.

 
 
Manuscript ID.  0440
Paper No.  2020-FRI-P0201-P024
Li-Chan Lai
Observation of Acoustic Charge Transport in GaN Based Quantum Well Structures under Surface Acoustic Wave Excitations
Li-Chan Lai

Here, by fabricating an IDT and a LED on GaN material, we demonstrate optical oscillation greater than 1 GHz and acoustic charge transport at room temperature. Also, our experiment is able to achieve a tunable optical resonant frequency by varying bias voltages without changing the LED structure.

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Optical Waveguides and Communications

Optical Waveguides and Communications IV
Saturday, Dec. 5, 2020  10:30-12:30
Presider: Prof. Chun-Nien Liu
Room: 6AB Room 227
Notes:
10:30 - 10:45 Manuscript ID.  0402
Paper No.  2020-SAT-S0204-O001
The Anh Nguyen
Low-Loss Ultra-Thin Si/Si3N4 Composite Photonic Waveguide
The Anh Nguyen;Ming-Chang M.Lee

We present an ultra-thin Si/Si3N4 composite waveguide structure equipped with
asymmetric dual-level grating couplers. This waveguide is capable of implementing low-loss
and high-speed photonics integrated circuit


 
 
10:45 - 11:00 Manuscript ID.  0548
Paper No.  2020-SAT-S0204-O002
Zohauddin Ahmad
FMCW Lidar system with performance comparison using P-i-n PD and Avalanche Photodiode receivers at 1550nm wavelength
Zohauddin Ahmad;You-Chia Chang;I-Sheng Kuo;Rui-Lin Chao;Yung-Jr Hung;Huang-Ming Chen;Jyehong Chen;Jin-Wei Shi

We demonstrate an electrical based FMCW lidar system and the performance was compared with the different receiver end consisting of APD and commercial available p-i-n PD based photo-receiver (p-i-n+TIA) both integrated with the LNA. APD receiver have around 7 dB larger S/N ratio in each pixel of image captured.

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11:00 - 11:15 Manuscript ID.  0510
Paper No.  2020-SAT-S0204-O003
Shao-Hua Song
Using Organic Photovoltaic Cell Receiver and Linear Regression Machine Learning Algorithm in Visible Light Positioning (VLP)
Shao-Hua Song;Dong-Chang Lin;Yun-Shen Lin;Chong-You Hong;Yu-Chun Wu;Hsin-Fei Meng;Chien-Hung Yeh;Chi-Wai Chow

We demonstrate a visible-light-positioning (VLP) system using organic-photovoltaic-cell (OPVC) and linear-regression-machine-learning (LRML) algorithm. Interpolation is proposed and employed to reduce the amount of training data, while the VLP performance can be maintained.

 
 
11:15 - 11:30 Manuscript ID.  0775
Paper No.  2020-SAT-S0204-O004
JyunYe Chu
Optical spot size converter integrated III-V active devices and SOI through adhesive bonding technique
JyunYe Chu;Yi-Jen Chiu

An adhesive material-assisted wafer bonding was used to integrate Ⅲ-Ⅴ quantum well-based devices on a low-loss silicon on insulator (SOI). An optical spot size converter (SSC) defined by tapered waveguide was designed for optical interconnection between two material templates. A function of EAM-SOA integration on SOI was successfully demonstrated.

 
 
11:30 - 11:45 Manuscript ID.  0705
Paper No.  2020-SAT-S0204-O005
Saswati Barat
Using Gaussian Filtering and Polynomial Curve Fitting to Improve Signal Decoding in Optical Camera Communication (OCC)
Saswati Barat;Chi-Wai Chow

We propose and demonstrate using Gaussian-filtering and polynomial-curve-fitting to improve signal decoding in optical camera communication (OCC). Experimental result shows that the proposed scheme can improve the bit-error-rate (BER) performance.

  Preview abstract
 
11:45 - 12:00 Manuscript ID.  0437
Paper No.  2020-SAT-S0204-O006
PinCheng Guo
Multimode Silicon-on-Insulator (SOI) Waveguide Grating Coupler based Mode Multiplexer and Demultiplexer for Few Mode Fiber (FMF) Transmission
PinCheng Guo;JuiFeng Tsai;ChunJui Chen;ChingWei Peng;GuanHong Chen;Chien-Hung Yeh;Yeyu Tong;HonKi Tsang;ChiWai Chow

We demonstrate a silicon-on-insulator (SOI) based multimode-waveguide-grating-coupler (MWGC) for simultaneously mode multiplexing/demultiplexing 2 fiber-modes at 2 polarizations, including LP01x, LP11x, LP01y and LP11y into a few-mode-fiber (FMF) transmission. 190-Gbit/s data transmission is achieved.

 
 
12:00 - 12:15 Manuscript ID.  0026
Paper No.  2020-SAT-S0204-O007
Yu-Ting Huang
A Bidirectional Fiber-FSO-5G Wireless Convergence System
Yu-Ting Huang;Cing-Ru Chou;Yi-Hao Chen;Hai-Han Lu

A bidirectional FSO-5G wireless convergence system with a VCSEL-based wavelength selector and a remotely injection-locked DFB LD is demonstrated.It exhibits an excellent convergence not only due to its development for incorporating optical fiber with optical/5G wireless networks, due to its enhancement for two-way high-speed and long-haul communications.

 
 
12:15 - 12:30 Manuscript ID.  0146
Paper No.  2020-SAT-S0204-O008
Shi-Chieh Hsu
Sub-wavelength Channel Waveguides with Near-Zero Flattened Dispersion for Silicon Photonics Applications
Yu-Ting Lai;YI-JANG HSU;Hsuan-Ming Kuo;Shi-Chieh Hsu;Yinchieh Lai

We propose a new type of channel waveguides with a sub-wavelength structure such that low and flattened dispersion can be achieved on the silicon-on insulator platform at 1.55μm wavelength. The structured waveguide is functional complete for designing basic components such as the directional couplers and ring resonators.

 
 


Optical Waveguides and Communications

Poster Session II
Saturday, Dec. 5, 2020  10:30-12:30
Presider: Prof. Wen-Jeng Ho
Room: 6AB Courtyard
Notes:
Manuscript ID.  0007
Paper No.  2020-SAT-P0202-P001
Keh-Yi Lee
Optimizing Direct Coupling between Laser Diode and Channel Waveguide by Shift-or-shrink (SOS) Algorithm
Yi-Xuan Wu;Chien-Hui Chien;Cheng-Hsiao Chung;Chun-Ming Hung;Keh-Yi Lee

The authors derive a formula of computing the direct coupling efficiency from a laser diode to a diffused channel waveguide. Then we utilize a very simple optimization method (shift-or-shrink algorithm) to obtain the optimal coupling conditions. Several cases of the channel waveguides are presented.

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Manuscript ID.  0117
Paper No.  2020-SAT-P0202-P002
Shao-Wei Lu
Regular pulses generated by semiconductor laser subject to both optoelectronic feedback and optical injection
Shao-Wei Lu

In this paper, the regular pulses generated by the pure optoelectronic feedback and the hybrid system are demonstrated and compared experimentally. By applying optical injection combined with the optoelectronic feedback system, the unwanted side peaks of the regular pulses are effectively suppressed. Moreover, the linewidths are also discussed and calculated.

  Preview abstract
 
Manuscript ID.  0642
Paper No.  2020-SAT-P0202-P003
Ming-Fu Liu
Development of Novel All-Fiber Mach-Zehnder Interferometer for Cu ion Detection
Ming-Fu Liu;Yu-Ze Zhang;Meng-Hong Lee;Shug-June Hwang

A Mach-Zehnder interferometer (MZI) sensor, which is constructed by a hollow-core fiber spliced between single mode fibers and functionalized with chitosan/poly(acrylic acid) self-assembled layers for monitoring heavy metal ion copper (II), is proposed and experimentally demonstrated.

 
 
Manuscript ID.  0219
Paper No.  2020-SAT-P0202-P004
You-Min Ren
An Accurate Camera Based Positioning System with Reduced Identification Error Applying Ring Marker and Centroid Method
Jiun-Yu Sung;You-Min Ren

A camera based positioning system is studied. The centroid method in combined with target ring markers is applied to reduce the probability of incorrectly identifying non-existing users. 95% positioning accuracy of 0.89 cm and user identification error with only 0.03 times of the case applying LED spot marker is demonstrated.

 
 
Manuscript ID.  0271
Paper No.  2020-SAT-P0202-P005
Chia-Wei Lee
The Design of 60 GHz Bandwidth Symmetrical Conducted- Backed Coplanar Waveguide Based on the Single-Layer Drilled Glass Substrate
Chia-Wei Lee;Chien-Liang Chiu

This design of a conducted-backed coplanar waveguide (CBCPW) is used for 60 GHz bandwidth. The CBCPW device is achieved on a single-layer drilled glass structure to obtain the transmission line of the insertion loss S21 of -0.69dB and the reflection loss S11 of -27.76dB.

  Preview abstract
 
Manuscript ID.  0450
Paper No.  2020-SAT-P0202-P006
Yi-Yung Tsai
Polarization Maintaining Negative Curvature Fiber for Terahertz Operation
Yi-Yung Tsai;Chih-Hsien Lai

We propose a terahertz (THz) polarization maintaining fiber which has a negative curvature structure and is geometrically asymmetric. Numerical results demonstrate that the birefringence of the proposed fiber will increase with the diameter of the inner nest.

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Manuscript ID.  0482
Paper No.  2020-SAT-P0202-P007
Zheng-Yuan Chen
Influence of Thermal Effect on Leakage Channel Fibers
Zheng-Yuan Chen;Chih-Hsien Lai

We numerically study the influence of thermal effect on the leakage channel fibers. It is found that the mode area will be reduced when the heat load is considered. Moreover, the mode area is smaller when the leakage channel fiber has a larger air-hole diameter.

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Manuscript ID.  0503
Paper No.  2020-SAT-P0202-P008
Hong-Minh Nguyen
High-Capacity High-Loss-Budget Long-Reach PON Incorporated with Volterra-based Pre-Distortion
Hong-Minh Nguyen;Szu-Chi Huang;Chia-Chien Wei;Chun-Yen Chuang;Jyehong Chen

Employing high launch power and Volterra-based pre-distortion to combat severe fading, loss and nonlinear distortion, we demonstrate a 52-Gbps 60-km LR-PON of 30-dB loss budget without inline or pre-amplifier and digital compensation for nonlinear distortion at ONUs.

 
 
Manuscript ID.  0717
Paper No.  2020-SAT-P0202-P009
Si-Yu Huang
Fiber Bragg Grating Low-Frequency AC Magnetic Field Sensor
Si-Yu Huang;Cheng-Yu Lin;Jeson Chen;Wen-Fung Liu

Here we proposed a low-frequency AC magnetic field sensor based on FBG with a magnet. When the sensor is at presence of an external magnetic field, the magnet attached polymer causes shift of the FBG reflection wavelength. Our design is affordable and compact, which is suitable for wide electronic applications.

 
 
Manuscript ID.  0683
Paper No.  2020-SAT-P0202-P010
Shen-Chen Chen
Heterogeneous Microdisk Resonators with High Resonant Thermal Stability
Shen-Chen Chen;Yan-Ting Li;Jia-Lun Ho;Tzyy-Jiann Wang

The microdisk resonator made of two oxide materials with positive and negative thermo-optic coefficients is presented with high thermal stability of resonant wavelength. The study upon the dependence of thermal drift rate on the thickness combination shows that the optimal thermal drift rate can be as low as 0.26 pm/ºC.

  Preview abstract
 
Manuscript ID.  0041
Paper No.  2020-SAT-P0202-P011
Jun-Kai Lin
Dispersion Compensating of dual-concentric core photonic crystal fibers
Jun-Kai Lin;Jau-Sheng Wang

This topic mainly uses the theory of dual-concentric core fiber, and the characteristics of index-guiding photonic crystal fiber to design, in which light can pass through the refractive index difference of the medium, and the fiber Structural modification to design a dispersion compensation fiber with ultra-high negative dispersion.

  Preview abstract
 
Manuscript ID.  0529
Paper No.  2020-SAT-P0202-P012
Po-Lun Chen
Dielectric constant and thickness measurement of subwavelength films using a metal-coated plastic woven mesh with unique transmission properties
Po-Lun Chen;Mei-Yueh Guo;Ja-Yu Lu;Borwen You

Terahertz surface resonant waves are generated on metal-coated plastic woven meshes with strong field confinement within the periodically corrugated surfaces. The transmission spectral dips can sensitively be responded to optical constants of samples. The measured detection limits of refractive index and thickness are respectively 0.013 RIU and lambda/653.

 
 
Manuscript ID.  0666
Paper No.  2020-SAT-P0202-P013
Ming-Fu Liu
Novel pH Sensor-based on Mach-Zehnder Interferometer Fiber Coated with Chitosan and PAA Bilayers
Ming-Fu Liu;Jian-Hong Lin;Po-Yu Gan;Qi-Jia Hong;Shug-June Hwang

A novel fiber-optic pH sensor based on a unique double-tapered Mach-Zehnder interferometer with multiple bilayers of chitosan and poly(acrylic acid) is proposed. pH responsive chitosan hydrogel coating on the fiber swells/deswells in response to local pH, inducing refractive index changes and then shifting of interference dips in the optical spectrum.

 
 
Manuscript ID.  0728
Paper No.  2020-SAT-P0202-P014
Kuei-Huei Lin
Ultra-Broadband Few-Mode Long-Period Fiber Grating for Doughnut Beam Generation
Wen-Hsuan Kuan;Kuei-Huei Lin

Ultra-broadband long-period fiber grating with higher-order mode conversion bandwidth larger than 150 nm is demonstrated, which has been combined with a tunable ytterbium-doped fiber laser to generate optical doughnut beams in the spectral range from 1030.0 nm to 1098.7 nm, and the vector nature of generated optical fields are observed.

 
 
Manuscript ID.  0748
Paper No.  2020-SAT-P0202-P015
Wen-Kai Wu
The Gain Characteristic of C-Band Tunable Wavelengths Affected by the Coupling Ratios in Ring Resonator of Erbium-Doped Fiber Laser
Wen-Kai Wu

The C-band tunable wavelength of erbium-doped fiber laser was constructed by a tunable optical filter in the ring resonator. The low and high coupling ratios in the resonator were found to have a large gain corresponding with the short and long wavelength of the C-band, respectively.

  Preview abstract
 
Manuscript ID.  0593
Paper No.  2020-SAT-P0202-P016
Hong-Jie Luo
Tunable Wavelengths and Equalized Optical Powers by Variations of Coupling Ratios in Circular Ring Resonator of Erbium-Doped Fiber Laser
Hong-Jie Luo

Controlling of the different coupling ratios in the circular ring resonator of erbium-doped fiber laser, the nine tunable wavelengths from 1558.900 to 1565.500 nm and the corresponding peak optical powers varied less than 1 dB compared with the average optical power of -13.36 dBm were obtained in this experiment.

  Preview abstract
 
Manuscript ID.  0190
Paper No.  2020-SAT-P0202-P017
Zhi-Xuan Liu
Fiber-Based Resonant Beam System for Optical Wireless Information and Power Transfer System
Zhi-Xuan Liu;Yu-Tang Luo;Hsu-Chih Cheng

This research is based on wireless OWIPT system of resonant beam, using wireless optical communication technology to enable signal and power transfer in free space at the same time. After the resonance effect is achieved, and DC and AC signals are separated to achieve power and signal transfer.

 
 
Manuscript ID.  0477
Paper No.  2020-SAT-P0202-P018
Chun-Jui Chen
Compact Silicon Photonics Mode Converter Utilizing the Subwavelength Grating Based Asymmetrical Directional Coupler
Chun-Jui Chen;Pin-Cheng Guo;Pi-Yu Tai;Jui-Feng Tsai;Ching-Wei Peng;Guan-Hong Chen;Chien-Hung Yeh;Chi-Wai Chow

A propose and demonstrate by simulation a compact mode-converter between TE0 and TE1 by utilizing subwavelength-grating-assisted (SWG) asymmetric-directional-coupler (ADC). Results show that the coupling-length can be reduced by 40%.

 
 
Manuscript ID.  0707
Paper No.  2020-SAT-P0202-P019
Ting-Heng Wang
DC Voltage Sensor of Fiber Bragg Grating
Ting-Heng Wang;Cheng-Hsuan Tsai;Shih-Hsien Hsu;Wen-Fung Liu

This study proposes a fiber direct-current voltage sensor by means of combining a fiber Bragg grating and piezoelectric transistor. The sensor can be used to detect the DC voltage in the range from 0 to 180 volts.

  Preview abstract
 
Manuscript ID.  0716
Paper No.  2020-SAT-P0202-P020
Yi-Cheng Lin
The Tuning Bandwidth of Tapered Fiber Bragg Grating
Yi-Cheng Lin;Cheng-Yu Lin;Jeson Chen;Wen-Fung Liu

This search is to investigate the tuning grating-bandwidth by applying different tension forces in a TFBG. The tension force from 0.02 to 0.1kgw is applied in five different fiber diameters from 80 to 40μm. In addition, the thermal influence of grating bandwidth from 40°C to 100°C is also investigated.

  Preview abstract
 
Manuscript ID.  0137
Paper No.  2020-SAT-P0202-P021
Guan-Jhang Huang
Radio over Fiber Transport System with Self–Healing Function
Ching-Hung Chang;Guan-Jhang Huang

A hybrid tree and multi–ring radio over fiber transport system is proposed and experimentally demonstrated. With the assistance of a self-composed single-line bidirectional optical add/drop multiplexer and flexible network structure, the transport system can maintain network traffics when multiple fiber link failures occurred.

 
 
Manuscript ID.  0569
Paper No.  2020-SAT-P0202-P022
Jhih-Heng Yan
PDM-based Flexible Capacity Management for MMW-RoF Fronthaul with a Polarization Insensitive RU Design
Jhih-Heng Yan;Kuan-Heng Shen;Yu-Yang Lin;Jian-Kai Huang;Chang-Yin Lin;Kai-Ming Feng

We propose and experimentally demonstrate a MIMO-MMW-RoF mobile fronthaul with a polarization insensitive RU design. In the same fronthaul infrastructure, a flexible capacity management can be achieved with two software-level controlled signal stream scenarios.

 
 
Manuscript ID.  0519
Paper No.  2020-SAT-P0202-P023
Yun-Shen Lin
Employing Logistic Regression and Data Preprocessing to Demodulate Rolling Shutter Pattern in Optical Camera Communication (OCC)
Yun-Shen Lin;Dong-Chang Lin;Shao-Hua Song;Ke-Ling Hsu;Chien-Hung Yeh;Chi-Wai Chow

We proposed and demonstrated an optical-camera-communication (OCC) employing logistic-regression and data-preprocessing. Experimental result shows that the proposed scheme can improve the bit-error-rate (BER) performance significantly.