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  • Received: Apr. 22, 2015

    Accepted: Jul. 9, 2015

    Posted: Oct. 31, 2019

    Published Online: Sep. 14, 2018

    The Author Email: Dijun Chen (djchen@siom.ac.cn), Haiwen Cai (hwcai@siom.ac.cn)

    DOI: 10.3788/COL201513.091402

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    Bin Lu, Fang Wei, Zhen Zhang, Dan Xu, Zhengqing Pan, Dijun Chen, Haiwen Cai. Research on tunable local laser used in ground-to-satellite coherent laser communication[J]. Chinese Optics Letters, 2015, 13(9): 091402

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Chinese Optics Letters, Vol. 13, Issue 9, 091402 (2015)

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

Bin Lu1,2, Fang Wei1, Zhen Zhang1,2, Dan Xu1,2, Zhengqing Pan1, Dijun Chen1,*, and Haiwen Cai1,**

Author Affiliations

  • 1Shanghai Key Laboratory of All Solid-State Laser and Applied Techniques, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China
  • 2University of Chinese Academy of Science, Beijing 100049, China

Abstract

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 GHz 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 ±5GHz Doppler frequency shift tracking with a 20 MHz/s frequency shift rate, which is sufficient for the ground-to-satellite coherent laser communication.