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Proceedings Paper

Compact photonic crystal fiber refractometer based on modal interference
Author(s): Wei Chang Wong; Chi Chiu Chan; Zhi Qiang Tou; Li Han Chen; Kam Chew Leong
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Paper Abstract

A compact photonic crystal fiber (PCF) refractometer based on modal interference has been proposed by the use of commercial fusion splicer to collapse the holes of PCF to form a Mach Zehnder interferometer by splitting the fundamental core mode into cladding and core modes in the PCF. Collapsed of holes was done at the interface between the single mode fiber and PCF, and the PCF's end. The shift of the interference fringes was measured when the sensor was placed into different refractive index liquid. High linear sensitivity of 253.13nm/RIU with resolution of 3.950×10-5RIU was obtained.

Paper Details

Date Published: 17 May 2011
PDF: 4 pages
Proc. SPIE 7753, 21st International Conference on Optical Fiber Sensors, 77531Y (17 May 2011); doi: 10.1117/12.884760
Show Author Affiliations
Wei Chang Wong, Nanyang Technological Univ. (Singapore)
Chi Chiu Chan, Nanyang Technological Univ. (Singapore)
Zhi Qiang Tou, Nanyang Technological Univ. (Singapore)
Li Han Chen, Nanyang Technological Univ. (Singapore)
Kam Chew Leong, GLOBALFOUNDRIES Inc. (Singapore)


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

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