Abstract

A novel method to measure the effective cavity length of distributed Bragg reflector (DBR) fiber laser with fiber Bragg grating (FBG) Fabry-Perot cavity as the resonator is proposed. The effective cavity length of DBR fiber laser is accurately measured by measuring the frequency spacing of two adjacent longitudinal modes in the cavity without the precise physical length of FBGs. The measuring accuracy as high as 10^-5 mm can be obtained by setting the resolution bandwidth of the spectrum analyzer.

© 2010 Chinese Optics Letters

Effective length of short Fabry-Perot cavity formed by uniform fiber Bragg gratings

Yuri O. Barmenkov, Dobryna Zalvidea, Salvador Torres-Peiró, Jose L. Cruz, and Miguel V. Andrés
Opt. Express 14(14) 6394-6399 (2006)

Research on a novel composite structure Er³⁺-doped DBR fiber laser with a π-phase shifted FBG

Yanjie Zhao, Jun Chang, Qingpu Wang, Jiasheng Ni, Zhiqiang Song, Haifeng Qi, Chang Wang, Pengpeng Wang, Liang Gao, Zhihui Sun, Guangping Lv, Tongyu Liu, and Gangding Peng
Opt. Express 21(19) 22515-22522 (2013)

High temperature resistant ultra-short DBR Yb-doped fiber laser

Hushan Wang, Songsong Xiong, Jiazheng Song, Fengyan Zhao, Zhijun Yan, Xiaohu Hong, Ting Zhang, Wei Zhang, Kaiming Zhou, Cheng Li, and Yishan Wang
Appl. Opt. 58(16) 4474-4478 (2019)

All-fiber laser feedback interferometer using a DBR fiber laser for effective sub-picometer displacement measurement

Desheng Zhu, Yuanyang Zhao, Yourui Tu, Hongtao Li, Lin Xu, Benli Yu, and Liang Lu
Opt. Lett. 46(1) 114-117 (2021)

Ultra-short DBR fiber laser with high-temperature resistance using tilted fiber Bragg grating output coupler

Xuantung Pham, Jinhai Si, Tao Chen, Zhen Niu, Fengqin Huang, and Xun Hou
Opt. Express 27(26) 38532-38540 (2019)