Generation and detection of squeezed state  

作　　者：SHANG Xu-dong YU Li FENG Xue-dong YANG Bo-jun 

机构地区：[1]Key Laboratory of Optical Communication and Light wave Technologies, Ministry of Education, Beijing University ofPosts and Telecommunications, Beijing 100876, China

出　　处：《Optoelectronics Letters》2008年第3期231-233,共3页光电子快报（英文版）

基　　金：the National Natural Science Foundation of China (No. 60378011 and No. 60578043);Beijing Education Committee Common Build Foundation (No. XK100130537).

摘　　要：Soliton amplitude squeezed state is obtained and dctected by using asymmetric Sagnac interferometer and balanced homodyne detecting system. An improved photo detector circuit for quantum state detection is introduced. The circuit has a bandwidth of 10MHz and the saturation power is about 19 mW. A maximum photocurrent noise reduction of 1.1 dB below the shot noise is achieved. Taking the detection efficiency into account,the squeezing will be about 1.5 dB.

关 键 词：压缩态 检测技术 孤波 不对称性 

分 类 号：O431.2[机械工程—光学工程]