Eccentric fiber Bragg gratings via radiation of femtosecond laser pulses

Rui Zhang, Qiang Xu, Peng Jiang, Lei Cao, Yani Zhang, Kang Li, Nigel Copner

Research output: Chapter in Book/Report/Conference proceedingConference Proceeding (Non-Journal item)

Abstract

Eccentric fiber Bragg gratings (EFGBs) in standard single-mode optical fiber by using point-by-point direct writing technique with 800 nm femtosecond laser. The experimental results show that the transmission spectrum amplitude is coupled by Bragg and cladding mode resonance over a wide spectrum range. Meanwhile, the spectral characteristics of EFBGs were studied by adjusting grating period, grating length, laser power and eccentric distance. The eccentric distance is the most essential parameter in terms of inscribing gratings. It can break up the original structural symmetry of the fiber by changing the offset of grating in the fiber core. This change will bring great opportunities and breakthroughs to the application of EFGBs.

Original languageEnglish
Title of host publicationFourth International Conference on Photonics and Optical Engineering
EditorsJiangbo She
PublisherSPIE
ISBN (Electronic)9781510643574
DOIs
Publication statusPublished - 2021
Externally publishedYes
Event4th International Conference on Photonics and Optical Engineering - Xi'an, China
Duration: 15 Oct 202016 Oct 2020

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume11761
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Conference

Conference4th International Conference on Photonics and Optical Engineering
Country/TerritoryChina
CityXi'an
Period15 Oct 202016 Oct 2020

Keywords

  • eccentric distance
  • Eccentric fiber Bragg gratings
  • femtosecond laser
  • point-by-point direct writing technique
  • standard singlemode fiber

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