UV laser photo-induced refractive index changes in poly-methyl-meth-acrylate and plastic optical fibres for application as sensors and devices

P. J. Scully

doi:10.1117/12.2302304

9 November 2000 UV laser photo-induced refractive index changes in poly-methyl-meth-acrylate and plastic optical fibres for application as sensors and devices

P. J. Scully

Author Affiliations +

Proceedings Volume 4185, Fourteenth International Conference on Optical Fiber Sensors; 41854H (2000) https://doi.org/10.1117/12.2302304
Event: Fourteenth International Conference on Optical Fiber Sensors, 2000, Venice, Italy

Abstract

Initial attempts to photo-induce refractive mdcx changes in bulk poly methyl methacrylate (PMMA) and in PMMA based plastic optical fibres (POF) using UV light are described. Optimum changes have been achieved at 216 nm, causing path length changes of 10π, corresponding to possible refractive index modulation of between 5 and 14 % over thicknesses up to 100 μm. The effects of refractive index changes on the far field modal distribution of tapered PMMA plastic optical fibres are described.

Citation Download Citation

P. J. Scully "UV laser photo-induced refractive index changes in poly-methyl-meth-acrylate and plastic optical fibres for application as sensors and devices", Proc. SPIE 4185, Fourteenth International Conference on Optical Fiber Sensors, 41854H (9 November 2000); https://doi.org/10.1117/12.2302304

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