Radiation mode resonances of tilted fiber Bragg gratings for high index media measurement

Chengkun Chen; Tuan Guo; Albane Laronche; Jacques Albert

doi:10.1117/12.785661

16 May 2008 Radiation mode resonances of tilted fiber Bragg gratings for high index media measurement

Chengkun Chen, Tuan Guo, Albane Laronche, Jacques Albert

Proceedings Volume 7004, 19th International Conference on Optical Fibre Sensors; 700418 (2008) https://doi.org/10.1117/12.785661
Event: 19th International Conference on Optical Fibre Sensors, 2008, Perth, WA, Australia

Abstract

We propose and experimentally demonstrate the feasibility high refractive indices measurement (larger than the fiber cladding index) by using individual radiation mode resonances of tilted fiber Bragg gratings. By tracking a single cladding mode relative to the Bragg resonance, improved sensitivity for refractive index measurement has been achieved and the temperature fluctuations could be eliminated. The maximum index sensitivity is 5×10^-4 with a detected power resolution of 0.1dB.

Citation Download Citation

Chengkun Chen, Tuan Guo, Albane Laronche, and Jacques Albert "Radiation mode resonances of tilted fiber Bragg gratings for high index media measurement", Proc. SPIE 7004, 19th International Conference on Optical Fibre Sensors, 700418 (16 May 2008); https://doi.org/10.1117/12.785661

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