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Proceedings Paper

Strain and temperature sensing characteristics of asymmetric-twin-core PCF-based hybrid Mach-Zehnder interferometer
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Paper Abstract

We investigate the strain and temperature sensing characteristics of an inline hybrid Mach-Zehnder interferometer (HMZI) formed by splicing a short section of asymmetric twin-core photonic crystal fiber (ATC-PCF) between two single mode fibers. For fixed polarization state of input light, two cores due to their asymmetric construction strongly support the propagation of few dominant core-modes, specifically, a lowest-order, and a set of lowest- and higher-order core-modes, respectively; this leads to a unique phase difference between inter-core and intra-core mode fiber interferometers in our ATC-PCF based HMZI. Experimental results reveal that, among different orders of interferometers involved in the HMZI, the interferometer with higher-value of modal refractive index difference exhibit larger phase-shift sensitivity to the surrounding perturbations.

Paper Details

Date Published: 2 June 2014
PDF: 4 pages
Proc. SPIE 9157, 23rd International Conference on Optical Fibre Sensors, 915712 (2 June 2014); doi: 10.1117/12.2059248
Show Author Affiliations
Khurram Naeem, Gwangju Institute of Science and Technology (Korea, Republic of)
Bongkyun Kim, Dankook Univ. (Korea, Republic of)
Youngjoo Chung, Gwangju Institute of Science and Technology (Korea, Republic of)


Published in SPIE Proceedings Vol. 9157:
23rd International Conference on Optical Fibre Sensors
José M. López-Higuera; Julian D. C. Jones; Manuel López-Amo; José Luis Santos, Editor(s)

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