High-gain amplification of weak signal based on stimulated Brillouin scattering in optical fiber

Liwen Sheng, Dexin Ba, Zhiwei Lu

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Lidar has been widely used in both military and civil applications. Its received optical signal undergoes considerable loss and disturbance from background noise, which limits its performance especially in bad weather or air conditions. A high-gain and frequency-selective amplifier for weak optical signal based on stimulated Brillouin scattering in single mode fiber is proposed, which is an excellent candidate for the signal enhancement in lidar system. The characteristics of the amplifier were studied numerically and experimentally. In experiment, a 430-nW (peak power) pulsed signal was amplified by 70 dB with a signal-noise ratio of 14 dB, which was in good agreement with theoretical result.

Original languageEnglish
Title of host publicationTenth International Conference on Information Optics and Photonics
EditorsYidong Huang
PublisherSPIE
ISBN (Electronic)9781510625792
DOIs
StatePublished - 2018
Externally publishedYes
Event10th International Conference on Information Optics and Photonics - Beijing, China
Duration: 8 Jul 201811 Jul 2018

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume10964
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Conference

Conference10th International Conference on Information Optics and Photonics
Country/TerritoryChina
CityBeijing
Period8/07/1811/07/18

Bibliographical note

Publisher Copyright:
© 2018 SPIE.

Keywords

  • Brillouin scattering
  • single model fiber
  • weak signal

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