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

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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. (C) 2010 Optical Society of America
Publisher
OPTICAL SOC AMER
Issue Date
2010-02
Language
English
Article Type
Article
Keywords

PHOTONIC CRYSTAL FIBER; 2-MODE OPTICAL-FIBERS; ELLIPTICITY

Citation

OPTICS EXPRESS, v.18, no.4, pp.3574 - 3581

ISSN
1094-4087
URI
http://hdl.handle.net/10203/19826
Appears in Collection
PH-Journal Papers(저널논문)
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