Session Index

Quantum Electronics and Laser Technology

Quantum Electronics
Friday, Dec. 8, 2017  14:50-16:20
Presider: Chih-Wei Luo;Chao-Kuei Lee
Room: International Research Building IR3003(3F)
Notes:
14:50 - 15:05 Paper No.  2017-FRI-S0305-O001
Silvano Donati Improved sub-nanometer Sensitivity for a Self-Mixing Vibrometer using the FM Channel
Silvano Donati

We develop a new method to read the frequency modulation of a laser diode self-mixing interferometer, using a Mach-Zehnder interferometer as an edge filter, and obtain improved displacement (NED) of 1.3-pm/√Hz, about two order of magnitude better than the AM channel or a normal SMI.

 
 
15:05 - 15:20 Paper No.  2017-FRI-S0305-O002
Jia-Hong Gong 100 GHz Sub-Picosecond Hybrid Mode-Locked Erbium-doped Fiber Soliton Laser with Low Net Dispersion
Jia-Hong Gong;Sheng-Min Wang;Cheng-Jhih Luo;Yinchieh Lai

We demonstrate a 100 GHz sub-picosecond hybrid mode-locked Er-doped fiber laser with the assistance of a Fabray-Perot etalon and a LiNbO3 phase modulator. Characteristics of this high-repetition-rate short-pulse fiber laser under both passive and hybrid mode-locking cases are investigated.

 
 
15:20 - 15:35 Paper No.  2017-FRI-S0305-O003
Syue-Shan Lin Engineering of switching behavior of electro-optic directional couplers in aperiodically poled lithium niobate
Syue-Shan Lin;Chieh-Hsun Lee;Shih-Yuan Yang;Hung-Pin Chung;Song-Lin Yang;Tsai-Yi Chien;Kuang-Hsu Huang;Yen-Hung Chen

We report the first idea and demonstration of using aperiodically alternating-∆β schemes in LiNbO3 waveguides to achieve engineering favorable switching behavior for electro-optic directional couplers. The fabrication tolerance and the working bandwidth of the APPLN coupler can be increased by 2.7 and 2.4 times, respectively, over a conventional PPLN coupler.

 
 
15:35 - 15:50 Paper No.  2017-FRI-S0305-O004
Jin-Long Peng Noise performances of all-PM and non-PM fs Er-fiber lasers mode-locked by nonlinear polarization evolution
Jin-Long Peng;Wei-Jo Ting

The phase noise of the repetition rate of an all-polarization-maintaining (PM) and a non-PM fs Er-fiber lasers mode-locked by nonlinear polarization evolution (NPE) are measured and compared. Higher low frequency noise in the all-PM NPE mode-locked fiber laser is observed. Detailed studies will be discussed in the conference.

 
 
15:50 - 16:05 Paper No.  2017-FRI-S0305-O005
Ray-Ching Hong Resonance in modulation instability in photo-refractive crystals
Ray-Ching Hong;Chun-Yan Lin;Chien-Chung Jeng;Ray-Kuang Lee

By experimental measurements and theoretical analyses, we reveal the resonance for modulation instability in photo-refractive crystals though modulation in the external driving voltage. By changing the modulation frequency periodically, oscillation, damping, over-damping in the visibility of modulation instability are reported in the nonlinear optical systems.

 
 
16:05 - 16:20 Paper No.  2017-FRI-S0305-O006
Han-Lun Chiu Extremely Small Divergence Photonic Crystal Surface Emitting Lasers with ITO Top Cladding Layers
Han-Lun Chiu;Shen-Che Huang;Kuo-Bin Hong;Shao-Wan Lan;Tien-Chang Lu

We demonstrate an electrically-driven single-mode GaAs-based photonic crystal surface emitting laser with extremely small divergence at room temperature. Indium-Tin-Oxide is used as the top cladding layer, which simplifies the fabrication process significantly. Lasing characteristics such as threshold current density, lasing spectra, and near/far field patterns have been measured and discussed.

 
 
16:20 - 16:20 Paper No.  2017-FRI-S0305-O007
Osamu Wada Dual-Wavelength Microsquare Laser for THz Wave Generation
Osamu Wada;Hai-Zhong Weng;Jun-Yuan Han;Jin-Long Xiao;Yue-De Yang;Yong-Zhen Huang;Jin Li;Bing Xiong;Chang-Zheng Sun;Yi Luo

An AlGaInAs/InP microsquare dual wavelength laser has been fabricated and applied to THz emission by beating two modes. A microlaser combined with a uni-travelling-carrier photodiode has demonstrated stable emission at 103.2 GHz with a projected linewidth of 50 MHz. Linewidth analysis confirmed a strong correlation between two laser modes.