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Polarization Characteristics in Twisted Single-Mode Optical Fibers

Jun-ichi SAKAI, Susumu MACHIDA, Tatsuya KIMURA

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Summary :

Polarization evolution and the degree of polarization in twisted optical fiber are measured using an identical fiber sample. Measured polarization degree is consistently explained using independently measured linear birefringence, polarization dispersion and light source spectral data. As the result, polarization characteristics in twisted optical fibers could be comprehensively understood by revealing the mutual relation between several characteristics. Twisted optical fiber is designed based on equations supported by experiment. To get good polarization preserving fiber with a twist rate as low as several turns/m, core ellipticity of starting fiber should be less than about 1%. Linear birefringence and polarization dispersion data are compared with theoretical values derived from fiber parameters and the sources of discrepancies are discussed.

Publication
IEICE TRANSACTIONS on transactions Vol.E68-E No.1 pp.7-13
Publication Date
1985/01/25
Publicized
Online ISSN
DOI
Type of Manuscript
PAPER
Category
Optical and Quantum Electronics

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