Session Index

Quantum Electronics and Laser Technology

Poster Session IV
Friday, Dec. 8, 2017  14:30-16:00
Presider: -
Room: International Research Building 5F
Notes:
Paper No.  2017-FRI-P0304-P001
Doddoji Ramachari Optical Properties of Nd3+-doped Oxyfluorosilicate Glasses at Terahertz Frequencies
Doddoji Ramachari;I-Fan Chien;Chao-Kai Wang;Chun-Ling Yen;Cho-Yen Tsai;Ci-Ling Pan

Terahertz time-domain spectroscopy has been used to study the optical properties of ZNbKLS and PbKNLS glasses doped with Nd3+ ions. The absorption coefficients α(ν), and refractive index n(ν), were measured in a frequency range from 0.2 THz to 1.2 THz. The results are compared with material properties.

 
 
Paper No.  2017-FRI-P0304-P002
Yuan-He Teng High power noise-like pulses generated by two core sizes gain fibers in an all-normal dispersion cavity
Chao-Wen Huang;Yuan-He Teng

We have designed a high power fiber laser cavity to generate noise-like pulses. Two ytterbium doped fibers with 10 μm and 30 μm core sizes were employed in an attempt to acquire higher output power. The highest average output power was 1.93 W with repetition rate 10.6 MHz.

 
 
Paper No.  2017-FRI-P0304-P003
Tsung-Yin Tsai Analyzing the band structure of InAs/InAsSb type II super lattice for mid and far infrared application
Tsung-Yin Tsai;Yuh-Renn Wu

Strain-balanced type-II InAs/InAsSb on GaSb substrate were designed for mid- and long-wavelength photodetectors. In our work, we develop a 8X8 k.p Schrodinger model to calculate the band structure of InAs/InAs0.62Sb0.38 T2SL, and a period of the superlattice consist of 13.9nm InAs layer and 4.5nm InAs0.62Sb0.38 layer.

 
 
Paper No.  2017-FRI-P0304-P004
Chun-Yan Lin Wave Localization With Curved Potentials
Chun-Yan Lin;You-Lin Chuang;Ray-Kuang Lee

To link the effect of geometry on wave propagation, we study wave localization in different geometric constraints, including parabola, hyperbola, S-shape, spiral and cardioid curves. Wave localization as the eigen-states in the trap potential are found numerically, then mapping back to the two-dimensional curved space.

 
 
Paper No.  2017-FRI-P0304-P005
Chi-Pin Chiu Bistability Depending on the Modulation Frequency in a Pump-modulation Solid-State Laser
Chi-Pin Chiu;Ken-Chia Chang;Chien-Yu Chu;Ming-Dar Wei

Optical bistability depending on the modulation frequency was explored in a pump-modulation Nd:YVO4 laser. When the laser operated around the degenerate cavity cofiguration, the amplitude fluctuation and the phase differences between modulation signals and lasing light is bistable by tuning the modulation frequecy.

 
 
Paper No.  2017-FRI-P0304-P006
Yi-Wel Wu The Characteristics for high-order Hermite-Gaussian transverse modes by a diode-pumped solid-state laser.
Yi-Wel Wu;Yu-Cheng Huang;Yu-Pin Lan

This study reports a simple way to observe high-order transverse Hermit-Gaussian modes by adjusting the laser cavity length and pumping position for tuning the cavity mode size and pumped mode size in a diode-end-pumped solid-state laser system.

 
 
Paper No.  2017-FRI-P0304-P007
Chi-Wei Wang Temperature Dependent Charge Control Model Of AlGaAs/GaAs/InGaAs Quantum-Well Heterojunction Bipolar Transistor
Chi-Wei Wang;Yun-Hsuan Chang;Chao-Hsin Wu

In this paper, we present a temperature-dependent charge control model of AlGaAs/GaAs/InGaAs Quantum-Well Heterojunction Bipolar Transistor (QW-HBT). Based on modified thermionic theory, a modified temperature-charge-control mode is developed. There is a fairly good agreement between the theory and the experiment.

 
 
Paper No.  2017-FRI-P0304-P008
Yao-Ching Chiu Utilization of femtosecond pump-probe technique on real time monitoring of ITO glass annealing
Yao-Ching Chiu;Zhi-Lin Hu;Ping-Han Wu;Hsiang-chen Wang

Femtosecond laser annealing is more selective than high-temperature annealing, applying it on multiple-layer elements can selectively anneal specific area and avoid excessive heat damaging other areas. We applying pump beam as the annealing source and probe beam to the real-time monitor the change of ITO transmittance.

 
 
Paper No.  2017-FRI-P0304-P009
Yuan-He Teng Characterization of POFC 30-μm-core Yb-doped active fiber
Yuan-He Teng

We report characteristics of the first large-core Yb-doped active fiber manufacture in Taiwan. These fibers exhibit characteristics or superior to comparable commercial productions.

 
 
Paper No.  2017-FRI-P0304-P010
Yu-Hsiang Peng Study on Laser Light Stability of Laser Resonant Cavity
Chien-Chung Tsai;Yu-Hsiang Peng;Shao-Zhang Lu;Hsin-Hong Liu

using the resonant cavity attenuation of the green laser (543nm) to do the laser experiment, to know the current use of the laser and the average life expectancy and to study of the laser resonant cavity caused to explore the problem of laser resonance cavity attenuation.