Characterization of structural irregularities in highly birefringent photonic crystal fiber using torsional acoustic polarization coupling

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We demonstrate a novel method to characterize structural irregularities in a highly birefringent photonic crystal fiber (HB PCF) with high accuracy based on polarization coupling by torsional acoustic wave. Birefringence variation induced by the irregularities of air-hole structure in the fiber cross-section is analyzed via the transmission spectra of the acousto-optic coupling between two orthogonal polarization modes propagating along the fiber. The estimated maximum birefringence variation of two sections in the same batch of the HB PCF is 3 x 10(-6) and 10(-5), respectively, from nominal birefringence value of 4.86 x 10(-4). The comparison between the experimental results and the numerical simulation resulted in the estimation of few tens of nm variation in the air-hole structure in the PCF. Crown Copyright (c) 2010 Published by Elsevier B.V. All rights reserved.
Publisher
ELSEVIER SCIENCE BV
Issue Date
2010-10
Language
English
Article Type
Article
Keywords

MICROSTRUCTURED OPTICAL-FIBERS; DEGENERACY; WAVE

Citation

OPTICS COMMUNICATIONS, v.283, no.20, pp.4094 - 4098

ISSN
0030-4018
DOI
10.1016/j.optcom.2010.05.072
URI
http://hdl.handle.net/10203/20601
Appears in Collection
PH-Journal Papers(저널논문)
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