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Proceedings Paper

An inline ultrasensitive temperature sensor based on liquid-filled photonic crystal fiber Mach-Zehnder modal interferometer
Author(s): Youfu Geng; Xuejin Li; Xiaoling Tan; Yuanlong Deng; Yongqin Yu
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Paper Abstract

We propose an ultrasensitive temperature sensor based on an in-line liquid-filled photonic crystal fiber (PCF) Mach- Zehnder interferometer. It consists of a small piece of index-guiding PCF fully infiltrated by fluid and two standard single-mode fibers offset spliced with the PCF. Two core modes of LP01 mode and LP11 mode are conveniently utilized as optical arms to form an in-line Mach-Zehnder-type interferometer. Experimental and theoretical investigation of its response to temperature confirms that and a high temperature sensitivity up to -0.244nm/(oC-mm) could be realized by such a compact inline liquid-filled PCF Mach-Zehnder interferometer.

Paper Details

Date Published: 7 November 2012
PDF: 4 pages
Proc. SPIE 8421, OFS2012 22nd International Conference on Optical Fiber Sensors, 84216U (7 November 2012); doi: 10.1117/12.966832
Show Author Affiliations
Youfu Geng, Shenzhen Univ. (China)
Xuejin Li, Shenzhen Univ. (China)
Xiaoling Tan, Ningbo Univ. (China)
Yuanlong Deng, Shenzhen Univ. (China)
Yongqin Yu, Shenzhen Univ. (China)


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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