Selected cladding mode recoupling based on cascaded LPG and TFBG for satellites vibration environment monitoring

Weisheng Liu, Tuan Guo, Chao Liu, Hwa Yaw Tam

Research output: Chapter in book / Conference proceedingConference article published in proceeding or bookAcademic researchpeer-review

1 Citation (Scopus)

Abstract

Selected cladding mode recoupling between a long period grating (LPG) and a tilted fiber Bragg grating (TFBG) is demonstrated for satellites vibration environment monitoring. The mode recoupling characteristic between LPGs with different resonance wavelengths and TFBGs with different tilt angles are investigated. Strong coupling occurs between the two associated cladding modes of the same order over the overlapped resonance bands of the two gratings. Suppression ratio of over 20 dB between the recoupled cladding mode and the core reflection mode is achieved when the resonance wavelength of the LPG matches the Bragg wavelength of the TFBG. The present sensor has the features of cost-effective power detection and tip-reflection sensing ability, and give a remarkably simple and elegant approach to dynamic vibration monitoring.
Original languageEnglish
Title of host publicationAOPC 2015
Subtitle of host publicationOptical Fiber Sensors and Applications
PublisherSPIE
Volume9679
ISBN (Electronic)9781628419047
DOIs
Publication statusPublished - 1 Jan 2015
EventApplied Optics and Photonics, China: Optical Fiber Sensors and Applications, AOPC 2015 - Beijing, China
Duration: 5 May 20157 May 2015

Conference

ConferenceApplied Optics and Photonics, China: Optical Fiber Sensors and Applications, AOPC 2015
Country/TerritoryChina
CityBeijing
Period5/05/157/05/15

Keywords

  • Cladding mode recoupling
  • Long period grating
  • Tilted fiber Bragg grating
  • Vibration environment monitoring

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

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