Abstract

In previous studies of polarization-mode-dispersion (PMD) distribution measurement by an optical time-domain reflectometer with polarimetry (p-OTDR), scatterers were assumed to be clouds of nonspherical particles in a fiber. However, the pulsewidth dependence of the degree of polarization (DOP) could not be explained by the assumption of nonspherical backscattering alone. In this paper, it is reported that the p-OTDR waveforms were fitted well by modified Mueller matrices under the assumptions of scattering by cloud of spherical particles and a reduction in the DOP due to the interference of the backscattered waves with the phase fluctuation. A PMD distribution measurement is demonstrated based on the p-OTDR Jones matrix eigenvalue method with the assumption of slowly varying PMD along the fiber length, and the regeneration of the PMD distribution of test fibers fabricated by splicing constituent fibers with known PMDs was successful. Surprisingly, the regenerated PMD distribution along the fiber length shows a linear accumulation of constituent fiber PMD in the short range of 6 km. The reverse-direction measurements show a reasonable regeneration of what is assumed to be a linear accumulation along the fiber length, which strongly suggests that the PMD distribution along the fiber shows a linear accumulation rather than a root-length accumulation in relatively short fibers with smaller PMD.

© 2006 IEEE

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Electron Lett. (1)

C. D. Poole, R. E. Wagner, "Phenomenological approach to polarization dispersion in single mode fibers," Electron Lett. 22, 1029-1030 (1986).

J. Lightw. Technol. (4)

F. Corsi, A. Galtarossa, L. Palmieri, "Polarization mode dispersion characterization of single-mode fiber using backscattering technique," J. Lightw. Technol. 16, 1832-1843 (1998).

J. G. Ellison, A. S. Siddiqui, "Automatic matrix-based analysis method for extraction of optical fiber parameters from polarimetric optical time domain reflectometry data," J. Lightw. Technol. 18, 1226-1232 (2000).

H. Sunnerd, B. E. Olsson, M. Karisson, P. A. Andreksonand, J. Brentel, "Polarization mode dispersion measurements along installed optical fibers using gated backscattered light and a polarimeter," J. Lightw. Technol. 18, 897-904 (2000).

T. Kudou, M. Iguchi, M. Musuda, T. Ozeki, "Theoretical basis of PMD equalization up to 2nd-order," J. Lightw. Technol. 18, 614-617 (2000).

Opt. Lett. (3)

Photon. Technol. Lett. (1)

B. Huttner, N. Gisin, J. P. von der Weid, "Local birefringent measurements in single-mode fibers with coherent optical frequency-domain reflectometry," Photon. Technol. Lett. 10, 1458-1460 (1998).

Other (7)

A. Tardy, M. Jurczyszyn, F. Bruyere, M. Herz, "Fiber PMD analysis for optical-fiber cable using polarization OTDR," Optical Fiber Comm. Conf., San Diego, CA, 1995, Paper ThD2.

T. Ozeki, A. Mitsuoka, M. Yoshimura, T. Kudou, "Polarization mode dispersion distribution along fiber length," Proc. OFC (1996) pp. 295.

H. C. van de Hulst, Light Scattering by Small Particles (Dover, 1981) pp. 53-57.

M. I. Mishchenko, J. W. Hovenier, L. D. Travis, Light Scattering by Nonspherical Particles (Academic, 2000) pp. 77-82.

H. C. van de Hust, Light Scattering by Small Particles (Dover, 1957) pp. 44-45.

H. Z. Cummins, "Laser light scattering spectroscopy," Proc. Int. School Phys. Quantum Opt. “Enrico Fermi” (1969) pp. 247-294.

T. Ozeki, K. Shinozuka, K. Iwasaki, "PMD distribution measurement with polarimetric OTDR assuming non-spherical Rayleigh backscattering," Proc. OFC (2004) pp. 3.

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