Abstract

A low frequency-noise ring random fiber laser (RFL) based on random Bragg grating array (RBGA) feedback is proposed. A dual-cavity fiber Bragg grating Fabry-Perot (FBG-FP) filter, which matches the wavelength of RBGA, is specially designed. Due to the narrower bandwidth, flatter response and steeper rolloff, the dual-cavity FBG-FP filter can significantly suppress the competition-induced frequency jitter and undesired residual random lasing modes, and contribute to establish stable lasing and further reduce frequency noise of RFL. The frequency noise of the proposed RFL is ∼3 Hz/√Hz above 1 kHz, and the frequency jitter is ∼3.11 × 10⁻¹¹ over 10 s. The 3-dB linewidth is ∼490 Hz with a ∼40 dB of optical signal-to-noise ratio.

High-resolution random fiber laser acoustic emission sensor

Shuaije Miao, Wentao Zhang, Ying Song, and Wenzhu Huang
Opt. Express 28(9) 12699-12708 (2020)

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)

Low-noise high-order Raman fiber laser pumped by random lasing

Bing Han, Yunjiang Rao, Han Wu, Jiazhen Yao, Hongjian Guan, Rui Ma, and Zinan Wang
Opt. Lett. 45(20) 5804-5807 (2020)

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)