Research on the influences of phase fluctuations on optical coherent detection systems

摘要：

Aiming at the optical coherent detection systems placed in atmosphere, we analyze the effects of phase fluctuations caused by atmospheric turbulence and simulate the coherent efficiency at different turbulence intensity. At the receiver, we decompose the phase distortion which caused by turbulence and put low order mismatching parameters into the equation of coherent efficiency which is used to describe coherent performance. Coherent efficiency is sharply deteriorated with the turbulence intensity increasing. Under the same conditions, system employing long wavelength and optimizing the diameter of collection aperture can get high sensitivity. Adaptive optics can be used to improve coherent performance.

关键词： coherent optical detector phase fluctuations signal

作者: Zhang Peng Li Xiaofeng Deng Ke Jiang Dagang

作者单位: Institute of Astronautics and Aeronautics,University of Electronic Science and Technology of China Xiyuan Avenue 2006,611731 Chengdu,China

会议类型: 国际会议

会议名称: 2011 10th International Conference on Electronic Measurement & Instruments(第十届电子测量与仪器国际会议 ICEMI2011)

会议地点: 成都

会议语种:英文

页码: 667-670

在线出版日期: 2011-08-16（万方平台首次上网日期，不代表论文的发表时间）