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

Suo, Rui, Chen, Xianfeng F., Zhou, Kaiming, Zhang, Lin and Bennion, Ian (2008). Polarisation mode coupling of excessively tilted fibre Bragg gratings with directional transverse loading. IN: 19th International Conference on Optical Fibre Sensors. Sampson, David; Collins, Stephen; Oh, Kyunghwan and Yamauchi, Ryozo (eds) SPIE proceedings . SPIE.

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.

Publication DOI: https://doi.org/10.1117/12.786048
Divisions: Engineering & Applied Sciences > Electrical, Electronic & Power Engineering
Engineering & Applied Sciences > Aston Institute of Photonics Technology
Additional Information: 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
Event Title: 19th International Conference on Optical Fibre Sensors
Event Type: Other
Event Dates: 2008-04-14 - 2008-04-18
Uncontrolled Keywords: photonics,transverse load,tilted fibre Bragg grating,vector sensor
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Related URLs: http://www.scop ... tnerID=8YFLogxK (Scopus URL)
http://proceedi ... ticleid=1334879 (Publisher URL)
Published Date: 2008-05-16
Authors: Suo, Rui
Chen, Xianfeng F.
Zhou, Kaiming ( 0000-0002-6011-1912)
Zhang, Lin ( 0000-0002-1691-5577)
Bennion, Ian

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