Abstract

A measurement technique for the phase and group birefringence of an optical fiber is thoroughly investigated. It is based on differential group delay measurements of twisted fibers and is capable of giving in a simple and elegant way the intrinsic birefringence values in the absence of twist. Analyzing various fibers with this method, we find that phase and group birefringence can be quite different for certain fiber types. Consequently, the commonly used assumption that in an optical fiber, phase and group birefringence are equal-and the resulting carelessness in distinguishing between these two a priori separate physical effects-is to be employed cautiously.

© 2003 IEEE

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Appl. Opt. (2)

J. Lightwave Technol. (1)

Opt. Lett. (3)

Other (10)

D. Chowdhury and D. Wilcox, "Comparision between optical fiber birefringence induced by stress anisotropy and geometric deformation", J. Select. Topics Quantum Electron., vol. 6, pp. 227-232, 2000.

V. P. Tzolov and M. Fontaine, "Theoretical analysis of birefringence and form-induced polarization mode dispersion in birefringent optical fibers: A full-vectorial approach", J. Appl. Phys., vol. 77, pp. 1-6, 1995.

J. D. Love, R. A. Sammut and A. W. Snyder, "Birefringence in elliptically deformed optical fibers", Electron. Lett., vol. 15, pp. 615-616, 1979.

M. Fontaine, "Computations of optical birefringence characteristics of highly eccentric elliptical core fibers under various thermal stress conditions", J. Appl. Phys., vol. 75, pp. 68-73, 1994.

K. Takada, J. Noda and R. Ulrich, "Precision measurement of modal birefringence of highly birefringent fibers by periodic lateral force", Appl. Opt. , vol. 24, pp. 4387-4391, 1985.

R. E. Schuh, J. G. Ellison, A. S. Siddiqui and D. H. O. Bebbington, "Polarization OTDR measurements and theoritical analysis on fibers with twist and their implications for estimation of PMD", Electron. Lett., vol. 32, pp. 387-388, 1996.

R. Passy, N. Gisin, J. P. Pellaux and P. Stamp, "Simultaneous measurements of beat length and polarization mode dispersion with the interferometric technique", in Proc. Symp. Optical Fiber Measurement (SOFM), 1991, pp. 85-88.

R. E. Schuh, E. S. R. Sikora, N. G. Walker, A. S. Siddiqui, L. M. Gleeson and D. H. O. Bebbington, "Theoretical ananlysis and measurement of effects of fiber twist on polarization mode dispersion of optical fibers", Electron. Lett., vol. 31, pp. 1772-1773, 1995.

B. L. Heffner, "Automated measurement of polarization mode dispersion using Jones matrix eigenanalysis", IEEE Photon. Technol. Lett., vol. 4, pp. 1066-1069, 1992.

B. Huttner, J. Reecht, N. Gisin, R. Passy and J. P. Von der Weid, "Local birefringence measurements in single-mode fibers with coherent optical frequency-domain reflectometry", IEEE Photon. Technol. Lett., vol. 10, pp. 1458-1460, 1998.

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