2 June 2014 Phase sensitivity of hollow-core photonic bandgap fiber to internal gas pressure
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Proceedings Volume 9157, 23rd International Conference on Optical Fibre Sensors; 91577M (2014) https://doi.org/10.1117/12.2059018
Event: OFS2014 23rd International Conference on Optical Fiber Sensors, 2014, Santander, Spain
Abstract
Phase sensitivity of the fundamental mode of hollow-core photonic bandgap fiber to gas pressure applied internally to its core is investigated. The measured phase sensitivity for a 95-cm-long fiber is 9.92 rad/kPa, over two orders of magnitude higher than that to external pressure. The large phase sensitivity is attributed mainly to the pressure-induced refractive index change of air inside the fiber core. Such an effect may be exploited for high sensitivity pressure sensing and biochemical and environmental process analysis involving pressure variations.
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Yingchun Cao, Fan Yang, Hoi Lut Ho, Wei Jin, "Phase sensitivity of hollow-core photonic bandgap fiber to internal gas pressure", Proc. SPIE 9157, 23rd International Conference on Optical Fibre Sensors, 91577M (2 June 2014); doi: 10.1117/12.2059018; https://doi.org/10.1117/12.2059018
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