Institution:University of Ottawa

Title of Paper:Random Fabry–Perot resonator-based sub-kHz Brillouin fiber laser to improve spectral resolution in linewidth measurement

Journal:Optics Letters

Summary:For the first time, we propose a novel Brillouin random fiber laser with a narrow linewidth of ∼860  Hz based on the bi-directionally pumped stimulated Brillouin scattering (SBS) in a 10-km-long optical fiber. A random fiber Fabry–Perot (FP) resonator is built up through the pump depletion effects of SBS at both ends of the fiber. A theoretical model is developed to reveal the physics behind the unique random FP resonator that enables narrow random lasing emission. The novel laser is successfully applied for linewidth characterization beyond 860 Hz of light source under test.

First Author:Yanping Xu

Correspondence Author:Ping Lu,Xiaoyi Bao

All the Authors:Dao Xiang,Zhonghua Ou

Discipline:Engineering

First-Level Discipline:Optical Engineering

Document Type:J

Volume:40

Issue:9

Page Number:1920-1923

Translation or Not:No

Date of Publication:2015-04

Included Journals:SCI

Release Time:2020-04-07