Polarisation mode coupling of excessively tilted fibre Bragg gratings with directional transverse loading

Rui Suo, Xianfeng F. Chen, Kaiming Zhou, Lin Zhang, Ian Bennion

Research output: Chapter in Book/Published conference outputChapter

Abstract

We report a distinctive polarisation mode coupling behaviour of tilted fibre Bragg gratings (TFBGs) with tilted angle exceeding 45°. The ex-45° TFBGs exhibit pronounced polarisation mode splitting resulted from grating structure asymmetry induced birefringence. We have studied and analysed the property of ex-45° TFBGs under transverse load applied to their equivalent fast- and slow-axis. The results show that the coupling between the orthogonally polarised modes takes place only when the load is applied to its fast-axis, giving a prominent directional loading response. This transverse load related polarisation property may be exploitable for implementation of optical fibre vector sensors capable of measuring the magnitude and orientation of the applied transverse load.
Original languageEnglish
Title of host publication19th International Conference on Optical Fibre Sensors
EditorsDavid Sampson, Stephen Collins, Kyunghwan Oh, Ryozo Yamauchi
PublisherSPIE
Number of pages4
ISBN (Print)978-0-8194-7204-5
DOIs
Publication statusPublished - 16 May 2008
Event19th International Conference on Optical Fibre Sensors - Perth, Australia
Duration: 14 Apr 200818 Apr 2008

Publication series

NameSPIE proceedings
PublisherSPIE
Volume7004
ISSN (Print)0277-786X

Conference

Conference19th International Conference on Optical Fibre Sensors
Country/TerritoryAustralia
CityPerth
Period14/04/0818/04/08

Bibliographical note

Rui Suo ; Xianfeng Chen ; Kaiming Zhou ; Lin Zhang and Ian Bennion
"Polarisation mode coupling of excessively tilted fibre Bragg gratings with directional transverse loading", David Sampson ; Stephen Collins ; Kyunghwan Oh and Ryozo Yamauchi (eds). Proc. SPIE 7004, 19th International Conference on Optical Fibre Sensors, 700443 (May 16, 2008).
Copyright 2008 Society of Photo-Optical Instrumentation Engineers. One print or electronic copy may be made for personal use only. Systematic reproduction and distribution, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper are prohibited.
http://dx.doi.org/10.1117/12.786048

Keywords

  • photonics
  • transverse load
  • tilted fibre Bragg grating
  • vector sensor

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