Session Index

Quantum Electronics and Laser Technology

Quantum Electronics and Laser Technology V
Saturday, Dec. 4, 2021  09:00-10:30
Presider: Prof. Ja-Hon Lin (林家弘; 北科大) /Prof. Te-Yuan Chung (鍾德元)
Room: 303a
09:00 - 09:15
Manuscript ID.  0653
Paper No.  2021-SAT-S0305-O001
Jian-Hung Lin Novel 7 x 1 high-power fiber laser combiner
Jian-Hung Lin

We present a novel 7 × 1 fiber laser combiner for high-power fiber laser by using a glass tube bundling method and micro-nano structure technique. A high output power of 4210 W is obtained by launching a power of 4240 W using four near-single mode Yb-doped fiber lasers (YDFLs) with operating at wavelength of 1070 nm.

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09:15 - 09:30
Manuscript ID.  0610
Paper No.  2021-SAT-S0305-O002
Hao-Tien Cheng VCSEL array with Binary Pattern Distribution for Sensing Applications
Hao-Tien Cheng;Jian-Syun Pan;Wei-Hao Lin;Yun-Cheng Yang;Chao-Hsin Wu

In this manuscript, we demonstrate our 940 nm VCSELs (vertical-cavity surface-emitting
lasers) with a peak optical output of 7.2 W under pulsed operation. The 50 devices are
arranged in a unique binary pattern distribution design for improved sensing applications.

09:30 - 09:45
Manuscript ID.  0056
Paper No.  2021-SAT-S0305-O003
Jyun-Zong Yu Laser Processing and Simulation for High Frequency Substrate Materials based on Multiphoton Absorption
Jyun-Zong Yu;Jui-Chi Chang;Chia-Yuan Chang;Chien-Jung Huang;Hsin-Yu Chang

Laser material processing for structure at micrometer level includes various phenomenon, such as photochemical, photothermal, photoablation and photodisruption, depending on laser and material parameters. Different high frequency substrate materials are studied in this paper. After the laser pulse energy is absorbed, the thermal model is used to simulate result of laser processing. Furthermore, due to the material optical properties, the multiphoton-excited fluorescence microscopy (MPEFM) could reconstruct the material fluorescence images for the 3D processed structure.

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09:45 - 10:00
Manuscript ID.  0106
Paper No.  2021-SAT-S0305-O004
Bo-Ru Zhao All-Fiber-Based High-Peak-Power 1250 nm Femtosecond Light Source for Clinical Imaging
Bo-Ru Zhao;Chi-Kuang Sun

In this paper we report the development of an all-fiber-format sub-megawatt-peak-power femtosecond light source at 1250 nm for clinical imaging. Driven by a Yb-fiber laser, we successfully generated 34 fs 1244 nm pulses with a 13.3 nJ pulses energy through self-phase modulation in a photonics crystal fiber in the weak negative dispersion region.

10:00 - 10:15
Manuscript ID.  0336
Paper No.  2021-SAT-S0305-O005
Mukul Kumar Simulation Study of Quantum-Well Heterojunction Bipolar Transistor Structure to Thermally-Enhanced Current Gain for Thermal Sensor Application
Mukul Kumar;Ying-Tzu Chen;Lu-Ching Hsueh;Chao-Hsin Wu

In this paper, we have investigated the simulation-based study of InGaP/GaAs heterojunction bipolar transistor (HBT) structure having 12 nm-In0.2Ga0.8As as quantum well in its base. The current gain of QW-HBTs is enhanced around ~248% with the increasing temperature from 300 K to 400 K, which characteristic is opposite to the simple HBTs based structure. The thermally-enhanced current gain is achieved by using the capture-escape model, parabolic quantum well model, Luttinger-Kohn k.p. model in the simulation. This study makes the application of QW-HBTs structure on the design of a smart thermal sensor promising.