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Proceedings Paper

Inline Mach-Zehnder interferometer using liquid filled twin-core photonic crystal fiber with high strain sensitivity.
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Paper Abstract

An inline Mach-Zehnder interferometer (MZI) is demonstrated using liquid filled twin-core photonic crystal fiber (TCPCF). The TC-PCF is filled selectively with liquid ethanol, increasing the effective refractive index contrast between twin cores, resulting in interference fringe spectrum with narrower free spectral range (FSR). Strain induced wavelength shift of the interference fringes is experimentally monitored. Wavelength shifts to the shorter wavelength side with a sensitivity of about -1.48 pm/με for applied strain change. Selectively liquid filled TC-PCF based MZI is simple to fabricate and expected to have wide range of applications in optical sensors, multi-wavelength laser source and tunable optical devices.

Paper Details

Date Published: 7 November 2012
PDF: 4 pages
Proc. SPIE 8421, OFS2012 22nd International Conference on Optical Fiber Sensors, 842179 (7 November 2012); doi: 10.1117/12.975174
Show Author Affiliations
Khurram Naeem, Gwangju Institute of Science and Technology (Korea, Republic of)
Bongkyun Kim, Gwangju Institute of Science and Technology (Korea, Republic of)
Jihee Han, Gwangju Institute of Science and Technology (Korea, Republic of)
Youngjoo Chung, Gwangju Institute of Science and Technology (Korea, Republic of)


Published in SPIE Proceedings Vol. 8421:
OFS2012 22nd International Conference on Optical Fiber Sensors
Yanbiao Liao; Wei Jin; David D. Sampson; Ryozo Yamauchi; Youngjoo Chung; Kentaro Nakamura; Yunjiang Rao, Editor(s)

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