中国物理B ›› 2018, Vol. 27 ›› Issue (2): 24207-024207.doi: 10.1088/1674-1056/27/2/024207

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

Influence of intra-cavity loss on transmission characteristics of fiber Bragg grating Fabry-Perot cavity

Di Wang(王迪), Meng Ding(丁孟), Hao-Yang Pi(皮浩洋), Xuan Li(李璇), Fei Yang(杨飞), Qing Ye(叶青), Hai-Wen Cai(蔡海文), Fang Wei(魏芳)   

  1. 1. Shanghai Key Laboratory of All Solid-State Laser and Applied Techniques, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China;
    2. University of Chinese Academy of Sciences, Beijing 100049, China
  • 收稿日期:2017-08-22 修回日期:2017-10-17 出版日期:2018-02-05 发布日期:2018-02-05
  • 通讯作者: Fei Yang, Hai-Wen Cai E-mail:fyang@siom.ac.cn;hwcai@siom.ac.cn
  • 基金资助:

    Project supported by the National Natural Science Foundation of China (Grant Nos. 61405212, 61377062, 61405218, and 61775225) and Scientific Innovation Fund of Chinese Academy of Sciences (Grant No. CXJJ-17S010).

Influence of intra-cavity loss on transmission characteristics of fiber Bragg grating Fabry-Perot cavity

Di Wang(王迪)1,2, Meng Ding(丁孟)1, Hao-Yang Pi(皮浩洋)1, Xuan Li(李璇)1, Fei Yang(杨飞)1, Qing Ye(叶青)1, Hai-Wen Cai(蔡海文)1, Fang Wei(魏芳)1   

  1. 1. Shanghai Key Laboratory of All Solid-State Laser and Applied Techniques, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China;
    2. University of Chinese Academy of Sciences, Beijing 100049, China
  • Received:2017-08-22 Revised:2017-10-17 Online:2018-02-05 Published:2018-02-05
  • Contact: Fei Yang, Hai-Wen Cai E-mail:fyang@siom.ac.cn;hwcai@siom.ac.cn
  • About author:42.81.-i; 42.81.Wg; 42.81.Dp
  • Supported by:

    Project supported by the National Natural Science Foundation of China (Grant Nos. 61405212, 61377062, 61405218, and 61775225) and Scientific Innovation Fund of Chinese Academy of Sciences (Grant No. CXJJ-17S010).

摘要:

A theoretical model of the fiber Bragg grating Fabry-Perot (FBG-FP) transmission spectrum considering loss of FBG and intra-cavity fiber is presented. Several types of FBG-FPs are inscribed experimentally, and their spectra are measured. The results confirm that weak intra-cavity loss is enhanced at the resonance transmission peak, that is, loss of transmission peaks is observably larger than other wavelengths. For FBG-FPs with multi resonance peaks, when the resonance peak wavelength is closer to the Bragg wavelength, the more significant loss effect of resonance transmission peak is exhibited. The measured spectra are fitted with the presented theoretical model. The fitted coefficient of determinations are near 1, which proves the validity of the theoretical model. This study can be applied to measure FBG loss more accurately, without a reference light. It can play an important role in FBG and FBG-FP writing process optimization and application parameter optimization.

关键词: fiber Bragg grating, Fabry-Perot cavity, intra-cavity loss, transmission characteristics

Abstract:

A theoretical model of the fiber Bragg grating Fabry-Perot (FBG-FP) transmission spectrum considering loss of FBG and intra-cavity fiber is presented. Several types of FBG-FPs are inscribed experimentally, and their spectra are measured. The results confirm that weak intra-cavity loss is enhanced at the resonance transmission peak, that is, loss of transmission peaks is observably larger than other wavelengths. For FBG-FPs with multi resonance peaks, when the resonance peak wavelength is closer to the Bragg wavelength, the more significant loss effect of resonance transmission peak is exhibited. The measured spectra are fitted with the presented theoretical model. The fitted coefficient of determinations are near 1, which proves the validity of the theoretical model. This study can be applied to measure FBG loss more accurately, without a reference light. It can play an important role in FBG and FBG-FP writing process optimization and application parameter optimization.

Key words: fiber Bragg grating, Fabry-Perot cavity, intra-cavity loss, transmission characteristics

中图分类号:  (Fiber optics)

  • 42.81.-i
42.81.Wg (Other fiber-optical devices) 42.81.Dp (Propagation, scattering, and losses; solitons)