Rouard's method as a modelling tool for the sensing characteristics of complex fibre Fabry-Perot interferometers formed between chirped fibre Bragg gratings

Edmon Chehura; Stephen W. James; Ralph P. Tatam

doi:10.1117/12.623441

23 May 2005 Rouard's method as a modelling tool for the sensing characteristics of complex fibre Fabry-Perot interferometers formed between chirped fibre Bragg gratings

Edmon Chehura, Stephen W. James, Ralph P. Tatam

Author Affiliations +

Proceedings Volume 5855, 17th International Conference on Optical Fibre Sensors; (2005) https://doi.org/10.1117/12.623441
Event: 17th International Conference on Optical Fibre Sensors, 2005, Bruges, Belgium

Abstract

Phase and spectral response characteristics of fibre Fabry-Perot interferometers (FFPI), formed between linearly chirped fibre Bragg gratings (FBG), were theoretically modelled using Rouard's method. The method models accurately the phase shift through a complex grating structure which the transfer matrix model is unable to achieve. The FBG FFPI cavities were modelled with variable free spectral range that was tailored further to provide strain insensitivity and strain enhancement by making the chirp parameter and cavity length satisfy the desired conditions at a given wavelength of illumination.

Citation Download Citation

Edmon Chehura, Stephen W. James, and Ralph P. Tatam "Rouard's method as a modelling tool for the sensing characteristics of complex fibre Fabry-Perot interferometers formed between chirped fibre Bragg gratings", Proc. SPIE 5855, 17th International Conference on Optical Fibre Sensors, (23 May 2005); https://doi.org/10.1117/12.623441

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