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17 May 2011Characteristics of hydrogen gas sensor based on a wavelength division multiplexing fiber coupler
A fiber optic sensor based on the wavelength division multiplexer coated with a palladium (Pd) thin film is designed for
hydrogen gas detection. The sensing mechanism of this sensor is measuring the wavelength shift that is induced by the
evanescent field interaction with the refractive index change of Pd film when it absorbs hydrogen.
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Kwan Seob Park, Joo Beom Eom, Min-Su Park, Young Ho Kim, Seong Jun Park, Jae-Hyeong Jang, Byeong Ha Lee, "Characteristics of hydrogen gas sensor based on a wavelength division multiplexing fiber coupler," Proc. SPIE 7753, 21st International Conference on Optical Fiber Sensors, 775362 (17 May 2011); https://doi.org/10.1117/12.885182