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5 October 2009 Ultra-high sensitive sensitive hydrogen sensor using higher order cladding mode coupled by a palladium-coated long-period fiber grating
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Proceedings Volume 7503, 20th International Conference on Optical Fibre Sensors; 75030Y (2009) https://doi.org/10.1117/12.835379
Event: 20th International Conference on Optical Fibre Sensors, 2009, Edinburgh, United Kingdom
Abstract
We demonstrate a simple but highly sensitive hydrogen sensor based on palladium-coated long-period fiber grating (LPG) inscribed in low core index fiber, which induces higher order cladding modes. As palladium layer absorbed 4% of hydrogen gas, the dual resonant wavelengths of the higher order cladding mode (LP08) are shifted to the opposite direction. The spectral sensitivity was much higher than those of other fiber-optic palladium-coated hydrogen sensors.
© (2009) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Young Ho Kim, Myoung Jin Kim, Byung Sup Rho, Hae Yong Choi, Min-su Park, Jae-Hyung Jang, and Byeong Ha Lee "Ultra-high sensitive sensitive hydrogen sensor using higher order cladding mode coupled by a palladium-coated long-period fiber grating", Proc. SPIE 7503, 20th International Conference on Optical Fibre Sensors, 75030Y (5 October 2009); https://doi.org/10.1117/12.835379
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