Session Index

Quantum Electronics and Laser Technology

Quantum Electronics and Laser Technology IV
Saturday, Dec. 5, 2020  10:30-12:30
Presider: Prof. Sheng-Kwang Hwang
Prof. Kuei-Huei Lin
Room: 6AB Room 625
10:30 - 10:45 Manuscript ID.  0338
Paper No.  2020-SAT-S0304-O001
Hao-Tien Cheng
Single-mode operation of an 850 nm MR VCSEL with a circular metal contact for spatial filtering
Hao-Tien Cheng;Szu-Yu Min;Jian-Syun Pan;Wei-Hao Lin;Chao-Hsin Wu

We have incorporated a metal ring to act as an effective mode-selection filter to suppress the emission of the higher-order modes. The 850 nm MR VCSEL with a 3 μm MR in diameter exhibits an output power of 0.83 mW and SMSR of 40.2 dB when biased at 4 mA.

10:45 - 11:00 Manuscript ID.  0478
Paper No.  2020-SAT-S0304-O002
Wei-Hao Lin
Thermally-stable VCSEL for up to 12.81 GHz operation at 85 oC
Wei-Hao Lin;Hao-Tien Cheng;I-Chien Chen;Jian-Syun Pan;Chao-Hsin Wu

We present results of our 850 nm thermally-stable vertical cavity surface-emitting lasers (VCSELs). With a strained InGaAs/AlGaAs quantum well design optimized for high-speed operation at higher operating temperature, the 3dB modulation bandwidth of InGaAs QW oxide ~4.6 µm aperture diameter reaches 12.81 GHz at 85 oC.

11:00 - 11:15 Manuscript ID.  0342
Paper No.  2020-SAT-S0304-O003
Ming Chang Shih
The Formation of Hybrid Resonant Cavities in the Semiconductor Circular Ring Laser Diode by Conjugate Reflection and its Output Characteristics
Ming Chang Shih;Chun Ting Tsen

We present the formation of hybrid resonators by conjugate reflection in the semiconductor circular ring laser diode. The L-I and spectrum measurements of mode spacing of Y-junction coupler waveguide terminal and the Soilton waveguide terminal were studied to verify the formation of these hybrid resonators.

11:15 - 11:30 Manuscript ID.  0412
Paper No.  2020-SAT-S0304-O004
Kai-Hsun Chang
Generation of Yellow-Orange Multi-wavelength Laser from chi(2) Photonic Crystals
Kai-Hsun Chang;To-Fan Pan;Chia-Chun Fan;Safia Mohand Ousaid;Chih-Ming Lai;‪Azzedine Boudrioua;Katrin Paschke;Hidefumi Akiyama;Hiroyuki Yokoyama;Lung-Han Peng

Five-peaks in orange-yellow band (580~595 nm) laser source was demonstrated by using intra-cavity second harmonic generation technique on periodically-poled-lithium-tantalate (PPLT). The slope efficiency and threshold of the device are 14.63 % and 60 MW/cm2. Further, we also propose another design to achieve tunable source from 550 nm to 605 nm.

11:30 - 11:45 Manuscript ID.  0796
Paper No.  2020-SAT-S0304-O005
Cheng-Han Ho
3-Band Simulation Model for MoS2 Nanoribbon based Intermediate Band Solar Cells
Cheng-Han Ho;Yuh-Renn Wu

To increase the eciency of the solar cell, a three-bands Poisson and drift-di usion model is developed to simulate the intermediate band (IB) of MoS2 nanoribbon solar cell, which could absorb the low energy photons through the IB to the conduction band. The new model shows that under certain condition, the short circuit current increases signi cantly. However, to maintain the high open circuit voltage, the downward transition rate needs to be limited.