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基于中阶梯光栅的高分辨率可调谐光纤激光器

High-Resolution Tunable Fiber Laser Based on Echelle Grating

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摘要

提出一种基于中阶梯光栅和数字微镜器件(DMD)的高分辨率C波段可调谐光纤激光器。利用DMD的灵活波长调谐性能和中阶梯光栅的高分辨率特性,在该激光器中设计了具有交叉色散结构的光路准直系统,实现了激光器高精度波长调谐功能。研究结果表明:通过在DMD上远程加载全息图,该激光器可实现1542~1558 nm波长范围内的灵活调谐,调谐精度为0.036 nm,输出信号的3 dB线宽小于0.02 nm,边模抑制比超过40 dB。在室温下,1 h内信号中心波长的漂移小于0.013 nm,功率涨落小于0.07 dB。

Abstract

Herein, we propose a high-resolution C-band tunable fiber laser based on an echelle grating and a digital micromirror device (DMD). By employing the wavelength tuning performance of DMD and the high-resolution characteristics of an echelle grating, we design a cross-dispersion structure based optical alignment system, realizing the high-resolution wavelength tuning capability. Experimental results show that the laser demonstrates flexible tuning in 1542-1558-nm region by remotely loading holograms onto the DMD. The wavelength tuning resolution is approximately 0.036 nm, and the 3-dB linewidth of the output signal is less than 0.02 nm. The side-mode suppression ratio exceeds 40 dB, the center wavelength drift is less than 0.013 nm, and the power fluctuation is less than 0.07 dB within 1 h at room temperature.

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中图分类号:TN248

DOI:10.3788/AOS201939.1014001

所属栏目:激光器与激光光学

基金项目:国家重大科研仪器研制项目;

收稿日期:2019-05-05

修改稿日期:2019-06-10

网络出版日期:2019-10-01

作者单位    点击查看

马成:中央民族大学理学院, 北京 100081
李金亮:中央民族大学理学院, 北京 100081
陈笑:中央民族大学理学院, 北京 100081
戴德政:中央民族大学理学院, 北京 100081
于笑渊:中央民族大学理学院, 北京 100081
孙洁:中央民族大学理学院, 北京 100081
张佳:中央民族大学理学院, 北京 100081
陈根祥:中央民族大学理学院, 北京 100081

联系人作者:陈笑(xchen4399@126.com)

备注:国家重大科研仪器研制项目;

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引用该论文

Ma Cheng,Li Jinliang,Chen Xiao,Dai Dezheng,Yu Xiaoyuan,Sun Jie,Zhang Jia,Chen Genxiang. High-Resolution Tunable Fiber Laser Based on Echelle Grating[J]. Acta Optica Sinica, 2019, 39(10): 1014001

马成,李金亮,陈笑,戴德政,于笑渊,孙洁,张佳,陈根祥. 基于中阶梯光栅的高分辨率可调谐光纤激光器[J]. 光学学报, 2019, 39(10): 1014001

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