Birefringence in single-mode optical fiber due to elliptical core deformation and stress anisotropy

Author

Imoto, Nobuyuki ; Yoshizawa, Nobuyuki ; Sakai, Jun-ichi ; Tsuchiya, Haruhiko

Author_Institution

Nippon Telegraph and Telephne Public Corp., Musashino, Tokyo, Japan

Volume

16

Issue

11

fYear

1980

fDate

11/1/1980 12:00:00 AM

Firstpage

1267

Lastpage

1271

Abstract

A formula for the difference between propagation constants of two polarization modes caused by elliptical core deformation and stress anisotropy is given for single-mode optical fibers. Birefringence in circular and elliptical core fibers subject to an externally applied uniaxial pressure are measured. Birefringence caused by elliptical core deformation and stress anisotropy are experimentally separated by measuring their wavelength dependences. A value of $3.36 \\times 10^{-10}$ cm²/gram weight (gw) (= $3.43 \\times 10^{-12}$ m²/N) is obtained for the stress-optical constant of silica fibers. Residual stress corresponding to external pressure of 240 gw/cm is observed for a fiber with 0.35 core ellipticity.

Keywords

Optical fiber mechanical factors; Optical refraction; Anisotropic magnetoresistance; Birefringence; Optical fiber polarization; Optical fibers; Pressure measurement; Propagation constant; Residual stresses; Silicon compounds; Stress measurement; Wavelength measurement;

fLanguage

English

Journal_Title

Quantum Electronics, IEEE Journal of

Publisher

ieee

ISSN

0018-9197

Type

jour

DOI

10.1109/JQE.1980.1070382

Filename

1070382