Generation of a continuous-wave squeezed vacuum state at 1.3 μm by employing a home-made all-solid-state laser as pump source  

作　　者：郑耀辉 邬志强 霍美茹 周海军 

机构地区：[1]State Key Laboratory of Quantum Optics and Quantum Optics Devices,Institute of Opto-Electronics,Shanxi University

出　　处：《Chinese Physics B》2013年第9期427-430,共4页中国物理B（英文版）

基　　金：supported by the National Basic Research Program of China (Grant No. 2010CB923101);the National Natural Science Foundation of China (Grant Nos. 61008001 and 61227015);the Natural Science Foundation of Shanxi Province, China (Grant No. 2011021003-2)

摘　　要：We present a continuous-wave squeezed vacuum generation system at a telecommunication wavelength of 1.3 μm. By employing a home-made single-frequency Nd：YVO4 laser with dual wavelength outputs as the pump source, via an optical parameter oscillator based on periodically poled KTR a squeezed vacuum of 6.1 dB＋0.1 dB below the shot noise limit at 1342 nm is experimentally measured. This system could be utilized for demonstrating practical quantum information networks.We present a continuous-wave squeezed vacuum generation system at a telecommunication wavelength of 1.3 μm. By employing a home-made single-frequency Nd：YVO4 laser with dual wavelength outputs as the pump source, via an optical parameter oscillator based on periodically poled KTR a squeezed vacuum of 6.1 dB＋0.1 dB below the shot noise limit at 1342 nm is experimentally measured. This system could be utilized for demonstrating practical quantum information networks.

关 键 词：squeezed vacuum telecommunication wavelength of 1.3 μm optical parametric oscillator 

分 类 号：TN248.1[电子电信—物理电子学] O431[机械工程—光学工程]