Session Index

Quantum Electronics and Laser Technology

Quantum Electroincs Student Award Session
Thursday, Dec. 7, 2017  15:15-17:00
Presider: Yen-Hung Chen;Kuan-Wei Su
Room: International Research Building IR3003(3F)
15:15 - 15:30 Paper No.  2017-THU-S0302-O001
Hao Ping Cheng Award Candidate Generation of 35.2-THz Optical Beating in Synchronously Self-mode-locked 946-nm and 1064-nm Lasers with Compact Coupling Scheme
Hao Ping Cheng

A synchronously self-mode-locked (SML) laser at 946 and 1064 nm is accomplished by utilizing a compact coupling scheme to achieve the optical beating frequency up to 35.2 THz. The two-color SML emissions are established by a monolithic Nd:YAG cavity and a Nd:YVO4 crystal in a flat-flat cavity, respectively.

15:30 - 15:45 Paper No.  2017-THU-S0302-O002
Hsun-Chung Wu Award Candidate Implementation of Balanced Homodyne Detectors with the Common Mode Rejection Ratio higher than 50 dB
Hsun-Chung Wu;Chien-Ming Wu;Shu-Rong Wu;Yi-Ru Chen;Ray-Kuang Lee

We design and implement a balanced homodyne detector (BHD) for cancelling out the classical noises in the electric circuit, with two identical photodiodes and op-amplifiers. To evaluate the performance of our BHD, the quantum efficiency of the photodiode, up to 68%; and the CMRR higher than 52 dB.

15:45 - 16:00 Paper No.  2017-THU-S0302-O003
Tzu-Lin Huang Award Candidate A Dual-wavelength Self-mode-locked Monolithic Nd:YAG Cryogenic Laser with Two Orthogonally Polarized Emissions : Generation of Sub-terahertz Beating
Tzu-Lin Huang;Hao-Ping Cheng;Yung-Fu Chen

An ultrashort beat signal with repetition rate of 670 GHz is generated from the dual-wavelength self-mode-locked laser at cryogenic temperatures. Two orthogonally polarized components result from the external mechanical stress induced birefringence are further observed.

16:00 - 16:15 Paper No.  2017-THU-S0302-O004
Ting-Han Chou Award Candidate Ultra-Low Propagation Loss of Femtosecond Laser Induced THz Acoustic Phonons in Wurtzite GaN
Ting-Han Chou;Alexei Maznev;jateen gandhi;Lucas Lindsay;Hyun Doug Shin;Abdelhak Bensaoula;Keith Adam Nelson;Chi-Kuang Sun

1-1.4THz coherent acoustic phonons were generated by the femtosecond laser pulses. To study their propagation in wurtzite GaN, we used two InGaN-GaN multiple quantum wells as the transducers and detectors simultaneously. Our results show that the measured acoustic loss is much lower than the predictions from previous work.

16:15 - 16:30 Paper No.  2017-THU-S0302-O005
Cheng-Han Wu Award Candidate Resonance-Free Optical Response of a Vertical Cavity Transistor Laser
Cheng-Han Wu;Chao-Hsin Wu

We report the first microwave bandwidth measurement of a vertical cavity transistor laser and demonstrate a 3 dB bandwidth of 11 GHz resonance-free optical response via base-current or collector-voltage modulation. The resonance-free optical response is explained by the absence of carrier ‘accumulating’ due to the fast base electron-hole recombination lifetimes.

16:30 - 16:45 Paper No.  2017-THU-S0302-O006
Yu-Chung Chiu Award Candidate Stimulated polariton scattering near 4 THz from lithium niobate
Yu-Chung Chiu;Tsong-Dong Wang;Gang Zhao;Yen-Chieh Huang

All the previously reported simulated polariton scatting from lithium niobate has peak gain at 1.8 THz. We report the discovery of another phase-matched gain peak near 4 THz in lithium niobate. We also demonstrate a signal-seeded off-axis THz parametric oscillator that generates 14-W peak power at 4.2 THz.

16:45 - 17:00 Paper No.  2017-THU-S0302-O007
Giulia Marcucci Award Candidate Quantum Control of Solitons and Supercontinuum
Giulia Marcucci;Simone Montangero;Tommaso Calarco;Claudio Conti

Controlling quantum nonlinear optical processes, as the generation of highly nonclassical states and broadband spectra, is a major challenge in optics. We apply recent quantum control techniques to optical solitons. By positive P-representation and stochastic simulations, we show that a proper control optimizes soliton evolution and supercontinuum.