Abstract

A stable single wavelength random fiber laser (RFL) with a partial-reflection random fiber grating (PR-RFG) for high temperature sensing is proposed and demonstrated for the first time, to the best of our knowledge. The PR-RFG is fabricated with the help of a femtosecond laser, with its highest reflection peak significantly higher than all other reflection peaks, which can ensure the stability of this filter-free RFL. Theoretical calculations also show that such a PR-RFG should be designed with reflectivity in the range of ${\sim}{{30}}\% {-}{{ 90}}\%$ to obtain one reflection peak significantly higher than other peaks. The threshold of this laser is only 6.4 mW. In addition, the RFL realizes temperature sensing in the range from 25°C to 500°C and has an optical signal-to-noise ratio of up to 70 dB.

© 2021 Optical Society of America

High efficiency Brillouin random fiber laser with replica symmetry breaking enabled by random fiber grating

Zichao Zhou, Liang Chen, and Xiaoyi Bao
Opt. Express 29(5) 6532-6541 (2021)

Multi-wavelength random fiber laser based on a tilted parallel inscribed apodized fiber Bragg grating array

Ming Shen, Jiancheng Deng, Yanxin Li, and Xuewen Shu
Opt. Lett. 47(21) 5473-5476 (2022)

Brightness enhancement in random Raman fiber laser based on a graded-index fiber with high-power multimode pumping

Yizhu Chen, Chenchen Fan, Tianfu Yao, Hu Xiao, Jinyong Leng, Pu Zhou, Ilya N. Nemov, Alexey G. Kuznetsov, and Sergey A. Babin
Opt. Lett. 46(5) 1185-1188 (2021)

Self-injection locking of a low-noise erbium-doped random fiber laser by a random fiber grating ring

Chen Chen, Haiyang Wang, Ping Lu, Stephen Mihailov, Liang Chen, and Xiaoyi Bao
Opt. Lett. 48(9) 2389-2392 (2023)

Low-noise Brillouin random fiber laser with a random grating-based resonator

Yanping Xu, Song Gao, Ping Lu, Stephen Mihailov, Liang Chen, and Xiaoyi Bao
Opt. Lett. 41(14) 3197-3200 (2016)