Research on tunable local laser used in ground-to-satellite coherent laser communication

作     者：卢斌 魏芳 张震 徐丹 潘政清 陈迪俊 蔡海文 

作者机构：Shanghai Key Laboratory of All Solid-State Laser and Applied Techniques Shanghai Institute of Optics and Fine Mechanics Chinese Academy of Sciences University of Chinese Academy of Science 

出 版 物：《Chinese Optics Letters》 (中国光学快报（英文版）)

年 卷 期：2015年第13卷第9期

页      面：44-48页

核心收录：

学科分类：080901[工学-物理电子学] 0809[工学-电子科学与技术（可授工学、理学学位）] 08[工学] 080401[工学-精密仪器及机械] 0804[工学-仪器科学与技术] 0803[工学-光学工程] 

基　　金：supported by the National Natural Science Foundation of China(No.61405218) the Shanghai Natural Science Foundation(No.14ZR1445100) 

主　　题：Doppler effect Frequency shift keying Integrated optics Satellites 

摘      要：In order to realize homodyne reception and Doppler frequency shift tracking in ground-to-satellite coherent laser communication, a local laser is experimentally demonstrated in this Letter. It is realized based on modulation- sideband injection locking, and has a 10 OHz tuning range, a 1 THz/s tuning rate, a 5 kHz linewidth, and 16 mW of output power. When applied to a Costas loop in a coherent laser communication system, the local laser can achieve ±5 GItz Doppler frequency shift tracking with a 20 MHz/s frequency shift rate, which is sufficient for the ground-to-satellite coherent laser conmmnication.