Polarization-locked VCSEL with PM fiber pigtail for quantum communication  

作　　者：辛国锋 沈力 皮浩洋 陈迪俊 蔡海文 封惠忠 耿健新 瞿荣辉 陈高庭 方祖捷 陈卫标 

机构地区：[1]Shanghai Institute of Optics and Fine Mechanics,Chinese Academy of Sciences,Shanghai Key Laboratory of All-Solid State Laser and Applied Techniques

出　　处：《Chinese Optics Letters》2012年第10期41-43,共3页中国光学快报（英文版）

摘　　要：Quantum communication is a new technology requiring a stable and reliable laser source for communication security. A new kind of polarization-locked vertical-cavity surface-emitting laser （VCSEL） with polarization maintaining （PM） fiber pigtail is fabricated as a decoy state laser source. The VCSEL is packaged in a standard butterfly box integrated with thermoelectric coder （TEC） and thermistor. The optical pulse width of full-width at half-maximum （FWHM） is smaller than 400 ps with a 100-MHz on/off modulation frequency. The results reveal that modulation range is better than 4. Moreover, the polarization is stable, and the power extinction ratio is larger than 25. The center wavelength is 850 nm, and the SMSR is better than 40 dB.Quantum communication is a new technology requiring a stable and reliable laser source for communication security. A new kind of polarization-locked vertical-cavity surface-emitting laser （VCSEL） with polarization maintaining （PM） fiber pigtail is fabricated as a decoy state laser source. The VCSEL is packaged in a standard butterfly box integrated with thermoelectric coder （TEC） and thermistor. The optical pulse width of full-width at half-maximum （FWHM） is smaller than 400 ps with a 100-MHz on/off modulation frequency. The results reveal that modulation range is better than 4. Moreover, the polarization is stable, and the power extinction ratio is larger than 25. The center wavelength is 850 nm, and the SMSR is better than 40 dB.

关 键 词：Fiber optic chemical sensors LASERS MODULATION POLARIZATION 

分 类 号：O431.2[机械工程—光学工程] TN918[理学—光学]