Transmission characteristics of long-period fiber gratings via radiation of femtosecond laser

Qiang Xu*, Rui Zhang, Yaru Xi, Peng Jiang, Yani Zhang, Kang Li, Nigel Copner, Xu Chen

*Corresponding author for this work

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

Abstract

The effects of pulse power, filling ratio, number of period and period on the long-period fiber gratings (LPFGs) by using radiation of femtosecond laser. The results show that the strong resonance peaks of LPFGs can be induced and the resonant peaks have different degrees of offset. When the parameters of the LPFG are set to be number of grating period of 70, filling ratio of 0.5, pulse power of 2.0 mW and period of 500 μm, the first resonance peak of LPFG has a blue-shift of 147.3 nm. Furthermore, the size of first resonance peak of LPFG is-19.4 dB. These characteristics of LPFGs provide a favorable opportunity for in-depth research of late-model sensing devices.

Original languageEnglish
Title of host publication14th National Conference on Laser Technology and Optoelectronics, LTO 2019
EditorsJianqiang Zhu, Weibiao Chen, Zhenxi Zhang, Minlin Zhong, Pu Wang, Jianrong Qiu
PublisherSPIE
ISBN (Electronic)9781510630468
DOIs
Publication statusPublished - 2019
Externally publishedYes
Event14th National Conference on Laser Technology and Optoelectronics, LTO 2019 - Shanghai, China
Duration: 17 Mar 201920 Mar 2019

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume11170
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Conference

Conference14th National Conference on Laser Technology and Optoelectronics, LTO 2019
Country/TerritoryChina
CityShanghai
Period17 Mar 201920 Mar 2019

Keywords

  • Femtosecond laser
  • Long-period fiber grating
  • Resonance peak
  • Transmission spectrum

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