High-accuracy measurement of cladding noncircularity based on phase velocity difference between acoustic polarization modes

Title
High-accuracy measurement of cladding noncircularity based on phase velocity difference between acoustic polarization modes
Authors
임선도박현철이관일이상배김병윤
Keywords
noncircularity; fiber; polarization
Issue Date
2010-02
Publisher
Optics express
Citation
VOL 18, NO 4, 3574-3581
Abstract
A high-accuracy measurement method for the noncircularity (ellipticity) of silica glass fibers is demonstrated. This method makes use of the phase velocity difference between two eigen polarization modes of the lowest-order acoustic flexural wave in an optical fiber. The relationship between the acoustic phase velocity difference and the fiber ellipticity is formulated. Three types of optical fibers were examined; photonic crystal fiber, elliptical core fiber, and standard single-mode fiber. Fiber ellipticity of less than 0.001 was successfully measured.
URI
http://pubs.kist.re.kr/handle/201004/45573
ISSN
1094-4087
Appears in Collections:
KIST Publication > Article
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