17 May 2011 Fiber in-line Mach-Zehnder interferometer based on selective infiltration of photonic crystal fiber
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Proceedings Volume 7753, 21st International Conference on Optical Fiber Sensors; 77530M (2011) https://doi.org/10.1117/12.885431
Event: 21st International Conference on Optical Fibre Sensors (OFS21), 2011, Ottawa, Canada
Abstract
By use of femtosecond laser assisted micro-machining, a novel kind of fiber in-line Mach-Zehnder interferometer is fabricated through selective infiltrating of the solid core photonic crystal fiber. Two adjacent air holes of the innermost layer are infiltrated of liquid with refractive index higher than that of the background silica. Theoretical analysis shows that fundamental and higher order rod modes can be excited and interference can occur between the rod modes and the fiber core mode. The temperature sensitivity of the device is measured to be -10.9 nm/ºC, which corresponds to a refractive index sensitivity of 2.7x104 nm/RIU.
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Minwei Yang, Minwei Yang, D. N. Wang, D. N. Wang, Ying Wang, Ying Wang, C. R. Liao, C. R. Liao, "Fiber in-line Mach-Zehnder interferometer based on selective infiltration of photonic crystal fiber", Proc. SPIE 7753, 21st International Conference on Optical Fiber Sensors, 77530M (17 May 2011); doi: 10.1117/12.885431; https://doi.org/10.1117/12.885431
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