Abstract

A temperature sensor realized by a single-wavelength erbium-doped fiber laser is demonstrated in this work. The configuration of the laser cavity is linear, comprising a physical mirror at one end, and the other end is formed by a combination of a fiber Bragg grating and random distributed Rayleigh feedback of a 30 km single-mode fiber. As a result of erbium amplification, the laser has low threshold pump power at 10.6 mW. Additionally, the laser has good stability with power fluctuations of less than 0.37 dB over a 30 min duration. With this fiber laser, a temperature sensor with sensitivity of 10.6 pm/°C can be realized for a temperature range from 30°C–90°C. The sensitivity value is comparable with those obtained with Raman-based fiber lasers, albeit with the requirement of lower threshold pump power.

© 2019 Optical Society of America

High stability multiwavelength random erbium-doped fiber laser with a reflecting-filter of six-superimposed fiber-Bragg-gratings

Ting Feng, Meili Jiang, Yating Ren, Mingming Wang, Fengping Yan, Yuping Suo, and X. Steve Yao
OSA Continuum 2(9) 2526-2538 (2019)

Raman amplifier-based long-distance remote, strain and temperature sensing system using an erbium-doped fiber and a fiber Bragg grating

Ju Han Lee, You Min Chang, Young-Geun Han, Haeyang Chung, Sang Hyuck Kim, and Sang Bae Lee
Opt. Express 12(15) 3515-3520 (2004)

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)

Nanotube Q-switched low-threshold linear cavity tunable erbium-doped fiber laser

Bo Dong, Chin-Yi Liaw, Jianzhong Hao, and Junhao Hu
Appl. Opt. 49(31) 5989-5992 (2010)

Low threshold characteristics of an L-band Brillouin-erbium comb fiber laser in a linear cavity

Mohammed H. Al-Mansoori, Syed J. Iqbal, Mohd. K. Abdullah, and Mohd. A. Mahdi
J. Opt. Soc. Am. B 23(11) 2281-2284 (2006)