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Proceedings Paper

Fiber in-line Mach-Zehnder interferometer based on selective infiltration of photonic crystal fiber
Author(s): Minwei Yang; D. N. Wang; Ying Wang; C. R. Liao
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Paper 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.

Paper Details

Date Published: 17 May 2011
PDF: 4 pages
Proc. SPIE 7753, 21st International Conference on Optical Fiber Sensors, 77530M (17 May 2011); doi: 10.1117/12.885431
Show Author Affiliations
Minwei Yang, The Hong Kong Polytechnic Univ. (Hong Kong, China)
D. N. Wang, The Hong Kong Polytechnic Univ. (Hong Kong, China)
Ying Wang, The Hong Kong Polytechnic Univ. (Hong Kong, China)
C. R. Liao, The Hong Kong Polytechnic Univ. (Hong Kong, China)


Published in SPIE Proceedings Vol. 7753:
21st International Conference on Optical Fiber Sensors
Jacques Albert; Wojtek J. Bock, Editor(s)

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