Microfiber Bragg grating inscribed using 193nm excimer laser for refractive index sensing

Yang Ran; Li-Peng Sun; Shuai Gao; Zhan Quan; Jie Li; Long Jin; Bai-Ou Guan

doi:10.1117/12.915876

30 January 2012 Microfiber Bragg grating inscribed using 193nm excimer laser for refractive index sensing

Yang Ran, Li-Peng Sun, Shuai Gao, Zhan Quan, Jie Li, Long Jin, Bai-Ou Guan

Proceedings Volume 8351, Third Asia Pacific Optical Sensors Conference; 835113 (2012) https://doi.org/10.1117/12.915876
Event: Asia Pacific Optical Sensors Conference, 2012, Sydney, Australia

Abstract

The inscription of fiber Bragg gratings was demonstrated by 193 nm ArF excimer laser in microfibers drawn from the standard single mode telecommunication fiber. Fiber Bragg gratings are directly inscribed in a series of microfibers with diameter ranged from ~10μm to 3.3 μm without any treatment to photosensitize the microfibers such as hydrogen loading, etc. Four reflection peaks are observed where three correspond to high order mode resonances. The resonance wavelength depends on the fiber diameter and it sharply blueshifts when the diameter is decreased below 10 μm. The gratings are characterized for their response to ambient refractive index. The higher order mode resonance exhibits higher sensitivity to refractive index.

Citation Download Citation

Yang Ran, Li-Peng Sun, Shuai Gao, Zhan Quan, Jie Li, Long Jin, and Bai-Ou Guan "Microfiber Bragg grating inscribed using 193nm excimer laser for refractive index sensing", Proc. SPIE 8351, Third Asia Pacific Optical Sensors Conference, 835113 (30 January 2012); https://doi.org/10.1117/12.915876

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