Chin. Phys. B ›› 2013, Vol. 22 ›› Issue (1): 14208-014208.doi: 10.1088/1674-1056/22/1/014208

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

Stable single longitudinal mode erbium-doped silica fiber laser based on asymmetric linear three-cavity structure

冯亭, 延凤平, 李琦, 彭万敬, 冯素春, 谭思宇, 温晓东   

  1. Key Lab of All Optical Network and Advanced Telecommunication Network of Ministry of Education, Institute of Lightwave Technology, Beijing Jiaotong University, Beijing 100044, China
  • 收稿日期:2012-04-23 修回日期:2012-06-11 出版日期:2012-12-01 发布日期:2012-12-01
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant Nos. 61077069 and 61107094) and the Innovation Foundation for Excellent Doctoral Candidates of Beijing Jiaotong University, China (Grant No. 2011YJS202).

Stable single longitudinal mode erbium-doped silica fiber laser based on asymmetric linear three-cavity structure

Feng Ting (冯亭), Yan Feng-Ping (延凤平), Li Qi (李琦), Peng Wan-Jing (彭万敬), Feng Su-Chun (冯素春), Tan Si-Yu (谭思宇), Wen Xiao-Dong (温晓东)   

  1. Key Lab of All Optical Network and Advanced Telecommunication Network of Ministry of Education, Institute of Lightwave Technology, Beijing Jiaotong University, Beijing 100044, China
  • Received:2012-04-23 Revised:2012-06-11 Online:2012-12-01 Published:2012-12-01
  • Contact: Yan Feng-Ping E-mail:fpyan@bjtu.edu.cn
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant Nos. 61077069 and 61107094) and the Innovation Foundation for Excellent Doctoral Candidates of Beijing Jiaotong University, China (Grant No. 2011YJS202).

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摘要： We present a stable linear-cavity single longitudinal mode (SLM) erbium-doped silica fiber laser. It consists of four fiber Bragg gratings (FBGs) directly written in a section of photosensitive erbium-doped fiber (EDF) to form asymmetric three-cavity structure. The stable SLM operation at a wavelength of 1545.112 nm with a 3-dB bandwidth of 0.012 nm and an optical signal-to-noise ratio (OSNR) of about 60 dB is verified experimentally. In laboratory condition, the performance of power fluctuation of less than 0.05 dB observed from the power meter for 6 h and wavelength variation of less than 0.01 nm obtained from the optical spectrum analyzer (OSA) for about 1.5 h are demonstrated. The gain fiber length is no longer limited to only several centimeters for SLM operation because of the excellent mode-selecting ability of the asymmetric three-cavity structure. The proposed scheme provides a simple and cost-effective approach to realizing a stable SLM fiber laser.

关键词: asymmetric three-cavity structure, single longitudinal mode, erbium-doped fiber laser, linear cavity

Abstract: We present a stable linear-cavity single longitudinal mode (SLM) erbium-doped silica fiber laser. It consists of four fiber Bragg gratings (FBGs) directly written in a section of photosensitive erbium-doped fiber (EDF) to form asymmetric three-cavity structure. The stable SLM operation at a wavelength of 1545.112 nm with a 3-dB bandwidth of 0.012 nm and an optical signal-to-noise ratio (OSNR) of about 60 dB is verified experimentally. In laboratory condition, the performance of power fluctuation of less than 0.05 dB observed from the power meter for 6 h and wavelength variation of less than 0.01 nm obtained from the optical spectrum analyzer (OSA) for about 1.5 h are demonstrated. The gain fiber length is no longer limited to only several centimeters for SLM operation because of the excellent mode-selecting ability of the asymmetric three-cavity structure. The proposed scheme provides a simple and cost-effective approach to realizing a stable SLM fiber laser.

Key words: asymmetric three-cavity structure, single longitudinal mode, erbium-doped fiber laser, linear cavity

中图分类号:  (Fiber lasers)

  • 42.55.Wd
42.81.-i (Fiber optics) 42.60.-v (Laser optical systems: design and operation)