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Proceedings Paper

Ultra-narrow-linewidth Brillouin/erbium fiber laser
Author(s): Mo Chen; Chenyu Wang; Jianfei Wang; Hong Luo; Zhou Meng
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Paper Abstract

Ultra-narrow-linewidth lasers are of great interest in many applications, such as precise spectroscopy, optical communications, and sensors. Stimulated Brillouin scattering (SBS), as one of the main nonlinear effects in fibers, is capable of generating narrow-linewidth light emission. We establish a compact Brillouin/erbium fiber laser (BEFL) utilizing 4-m erbium-doped fiber as both the Brillouin gain and linear media. A 360-kHz-linewidth laser diode is injected into the cavity as the Brillouin pump (BP) light and generates Brillouin Stokes lasing light. Both of the phase noise of the BP and BEFL output are measured by a high-accuracy unbalanced Michelson interferometer. It is demonstrated that 53- dB phase noise reduction is achieved after the BP is transferred into Brillouin Stokes emission. The linewidth of the BEFL is indicated at Hz-range by both calculation and experiment.

Paper Details

Date Published: 26 February 2018
PDF: 7 pages
Proc. SPIE 10512, Fiber Lasers XV: Technology and Systems, 105120J (26 February 2018);
Show Author Affiliations
Mo Chen, National Univ. of Defense Technology (China)
Chenyu Wang, National Univ. of Defense Technology (China)
Jianfei Wang, National Univ. of Defense Technology (China)
Hong Luo, National Univ. of Defense Technology (China)
Zhou Meng, National Univ. of Defense Technology (China)

Published in SPIE Proceedings Vol. 10512:
Fiber Lasers XV: Technology and Systems
Ingmar Hartl; Adrian L. Carter, Editor(s)

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