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Ultrahigh resolution optical spectrometry based on Brillouin dynamic grating

  • Yongkang Dong
  • , Taofei Jiang
  • , Lei Teng
  • , Hongying Zhang
  • , Liang Chen
  • , Xiaoyi Bao
  • , Zhiwei Lu
  • Harbin Institute of Technology
  • Harbin University of Science and Technology
  • University of Ottawa

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

Abstract

We demonstrate an ultrahigh resolution optical spectrometry based on Brillouin dynamic grating (BDG). Taking advantage of creating a long grating in an optical fiber, an ultra-narrow bandwidth optical filter is realized by operating a BDG in a long single-mode fiber (SMF), and the optical spectrometry is performed by sweeping the center wavelength of the filter through swept-tuned laser. In experiment, a 4-fm (0.5 MHz) spectral resolution is achieved by operating a BDG in a 400-m SMF, and the wavelength coverage can be readily extended to C+L band with a commercial tunable laser.

Original languageEnglish
Title of host publication23rd International Conference on Optical Fibre Sensors
PublisherSPIE
ISBN (Print)9781628411751
DOIs
StatePublished - 2014
Event23rd International Conference on Optical Fibre Sensors - Santander, Spain
Duration: 2 Jun 20146 Jun 2014

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume9157
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Conference

Conference23rd International Conference on Optical Fibre Sensors
Country/TerritorySpain
CitySantander
Period2/06/146/06/14

Keywords

  • Dynamic grating
  • Optical spectrometry
  • Stimulated Brillouin scattering
  • Ultrahigh spectral resolution

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