Microfiber Bragg grating hydrogen sensor base on co-sputtered Pd/Ni composite film

Gaopeng Wang; Minghong Yang; Jixiang Dai; Cheng Cheng; Yinqian Yuan

doi:10.1117/12.2184259

1 July 2015 Microfiber Bragg grating hydrogen sensor base on co-sputtered Pd/Ni composite film

Gaopeng Wang, Minghong Yang, Jixiang Dai, Cheng Cheng, Yinqian Yuan

Proceedings Volume 9655, Fifth Asia-Pacific Optical Sensors Conference; 965513 (2015) https://doi.org/10.1117/12.2184259
Event: Fifth Asia Pacific Optical Sensors Conference, 2015, Jeju, Korea, Republic of

Abstract

A novel hydrogen sensor based on Pd/Ni co-sputtered coating on micro fiber Bragg grating (MFBG) is proposed and experimentally demonstrated. The microfiber is stretched uniformly and the Bragg grating is directly inscribed on the microfiber without hydrogen loading using 193 nm ArF excimer laser and a phase mask. Palladium and nickel coatings are co-sputtered on the micro fiber Bragg grating for hydrogen sensing. The MFBG hydrogen sensors are characterized concerning their response to the hydrogen, ambient temperature and ambient refractive index, respectively. The performance of the proposed MFBG hydrogen sensor is obviously enhanced, especially when compared to standard FBG hydrogen sensors.

Citation Download Citation

Gaopeng Wang, Minghong Yang, Jixiang Dai, Cheng Cheng, and Yinqian Yuan "Microfiber Bragg grating hydrogen sensor base on co-sputtered Pd/Ni composite film", Proc. SPIE 9655, Fifth Asia-Pacific Optical Sensors Conference, 965513 (1 July 2015); https://doi.org/10.1117/12.2184259

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