Ex) Article Title, Author, Keywords
J. Korean Phys. Soc. 2020; 76(9): 810-818
Published online May 15, 2020 https://doi.org/10.3938/jkps.76.810
Copyright © The Korean Physical Society.
Do Kyung Kim1, Seul-Lee Lee1, Sungwook Choi1, Min Seok Kim1, Jihoon Kim2, Jinsil Han2, Yong Wook Lee1,2
Correspondence to:Yong Wook Lee
(a) Schematic diagram of the fabrication setup for cascaded long-period fiber gratings (LPFGs) on polarization-maintaining photonic crystal fiber (PMPCF), (b) side-view image of the fabricated grating, and (c) its polarization-dependent in-
fiber Mach-Zehnder interference spectra measured for orthogonal input polarization states denoted by polarizer angles of 0° (red) and 90° (blue). The inset of (b) shows a cross-sectional image of the PMPCF. SIDs A and B are the two fringe dips used as sensor indicators. (d) Schematic diagram of the proposed sensor and wavelength shifts of SIDs A (red) and B (blue), measured for applied (e) strain and (f) temperature changes.
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