中国物理B ›› 2014, Vol. 23 ›› Issue (2): 24209-024209.doi: 10.1088/1674-1056/23/2/024209

• ELECTROMAGNETISM, OPTICS, ACOUSTICS, HEAT TRANSFER, CLASSICAL MECHANICS, AND FLUID DYNAMICS • 上一篇    下一篇

A compact graphene Q-switched erbium-doped fiber laser using optical circulator and tunable fiber Bragg grating

李和平a, 夏汉定a, 王泽高b, 张晓霞a, 陈远富b, 张尚剑a, 唐雄贵a, 刘永a   

  1. a School of Optoelectronic Information, University of Electronic Science and Technology of China, Chengdu 610054, China;
    b State Key Laboratory of Electronic Thin Films and Integrated Devices, University of Electronic Science and Technology of China, Chengdu 610054, China
  • 收稿日期:2013-09-15 修回日期:2013-11-04 出版日期:2013-12-12 发布日期:2013-12-12
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant Nos. 61077017 and 61378028), the Program for New Century Excellent Talents in University, China (Grant Nos. NCET-11-0069 and NCET-10-0291), and the 111 Project (Grant No. B13042).

A compact graphene Q-switched erbium-doped fiber laser using optical circulator and tunable fiber Bragg grating

Li He-Ping (李和平)a, Xia Han-Ding (夏汉定)a, Wang Ze-Gao (王泽高)b, Zhang Xiao-Xia (张晓霞)a, Chen Yuan-Fu (陈远富)b, Zhang Shang-Jian (张尚剑)a, Tang Xiong-Gui (唐雄贵)a, Liu Yong (刘永)a   

  1. a School of Optoelectronic Information, University of Electronic Science and Technology of China, Chengdu 610054, China;
    b State Key Laboratory of Electronic Thin Films and Integrated Devices, University of Electronic Science and Technology of China, Chengdu 610054, China
  • Received:2013-09-15 Revised:2013-11-04 Online:2013-12-12 Published:2013-12-12
  • Contact: Li He-Ping E-mail:oehpli@uestc.edu.cn
  • About author:42.55.Wd; 42.60.Gd; 42.79.Dj; 78.67.Wj
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant Nos. 61077017 and 61378028), the Program for New Century Excellent Talents in University, China (Grant Nos. NCET-11-0069 and NCET-10-0291), and the 111 Project (Grant No. B13042).

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摘要： We demonstrate a passively Q-switched tunable erbium-doped fiber laser (EDFL) based on graphene as a saturable absorber (SA). A three-port optical circulator (OC) and a strain-induced tunable fiber Bragg grating (TFBG) are used as the two end mirrors in an all-fiber linear cavity. The Q-switched EDFL has a low pump threshold of 23.8 mW. The pulse repetition rate of the fiber laser can be widely changed from 9.3 kHz to 69.7 kHz by increasing the pump power from 23.8 mW to 219.9 mW. The minimum pulse duration is 1.7 μs and the highest pulse energy is 25.4 nJ. The emission wavelength of the laser can be tuned from 1560.43 nm to 1566.27 nm by changing the central wavelength of the strain-induced TFBG.

关键词: fiber lasers, Q-switching, wavelength tunable operation, graphene saturable absorber

Abstract: We demonstrate a passively Q-switched tunable erbium-doped fiber laser (EDFL) based on graphene as a saturable absorber (SA). A three-port optical circulator (OC) and a strain-induced tunable fiber Bragg grating (TFBG) are used as the two end mirrors in an all-fiber linear cavity. The Q-switched EDFL has a low pump threshold of 23.8 mW. The pulse repetition rate of the fiber laser can be widely changed from 9.3 kHz to 69.7 kHz by increasing the pump power from 23.8 mW to 219.9 mW. The minimum pulse duration is 1.7 μs and the highest pulse energy is 25.4 nJ. The emission wavelength of the laser can be tuned from 1560.43 nm to 1566.27 nm by changing the central wavelength of the strain-induced TFBG.

Key words: fiber lasers, Q-switching, wavelength tunable operation, graphene saturable absorber

中图分类号:  (Fiber lasers)

  • 42.55.Wd
42.60.Gd (Q-switching) 42.79.Dj (Gratings) 78.67.Wj (Optical properties of graphene)