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Proceedings Paper

Micro-ridge long-period fiber gratings inscribed on a polarization-maintaining fiber for measurement of strain
Author(s): Oh-Jang Kwon; Myungjun Shin; Young-Guen Han
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Paper Abstract

Micro-ridge long-period fiber gratings (MRLPFGs) inscribed on a polarization-maintaining fiber (PMF) were demonstrated. The cladding region of the PMFs was periodically etched by using a wet etching technique, resulting in the periodic micro-ridges in the surface of the PMF. The PMF-based MRLPFGs has two resonant peaks because of the birefringence of the PMF. Two resonant peaks of the PMF-based MRLPFGs were generated by increasing the applied strain because of the photoelastic effect. The peak depth is only changed by increasing the external strain. It means that the proposed PMF-based MFLPFGs are very useful for the application to strain sensors.

Paper Details

Date Published: 17 October 2012
PDF: 4 pages
Proc. SPIE 8421, OFS2012 22nd International Conference on Optical Fiber Sensors, 842140 (17 October 2012); doi: 10.1117/12.968576
Show Author Affiliations
Oh-Jang Kwon, Hanyang Univ. (Korea, Republic of)
Myungjun Shin, Hanyang Univ. (Korea, Republic of)
Young-Guen Han, Hanyang Univ. (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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