Fast Laser Wavelength Locking System Based on Piezoelectric Ceramics and Fiber Bragg Grating

被引：0

作者：

Si J. ^{[1
,2
]}

Zhu R. ^{[1
]}

Zhao S. ^{[1
]}

Xiao R. ^{[1
]}

Zhong C. ^{[1
]}

Hou X. ^{[1
]}

Chen W. ^{[1
]}

机构：

[1] Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai

[2] Chinese Academy of Sciences, Beijing

来源：

Zhongguo Jiguang/Chinese Journal of Lasers | 2020年 / 47卷 / 12期

关键词：

Fiber Bragg grating; Optical communications; Piezoelectric ceramics; Spatial coherent optical communication;

D O I：

10.3788/CJL202047.1201002

中图分类号：

学科分类号：

摘要：

A local oscillation laser seed source with narrow linewidth and large tuning bandwidth is one of the core components of space coherent optical communication systems. Using the narrow linewidth seed source in combination with external electro-optical modulation and narrowband grating filtering, narrow line width and high tuning bandwidth can be achieved, but the fiber Bragg grating controlled by temperature is difficult to adapt to the high-speed Doppler frequency shift between moving platforms. In this paper, a closed-loop system of a fiber Bragg grating controlled by piezoelectric ceramics in combination with the gradient descent algorithm is used to realize the relative locking of the fiber grating and the injected laser wavelength. The proposed scheme can adapt to spatial Doppler shift above 40 MHz/s. © 2020, Chinese Lasers Press. All right reserved.

引用

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