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Polarization-Dependent Brillouin Gain in Randomly Birefringent Fibers

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3 Author(s)
Ursini, L. ; Dept. of Inf. Eng., Univ. of Padova, Padova, Italy ; Santagiustina, M. ; Palmieri, L.

An extensive study of the alignment between the pump, the signal, and the polarization-dependent gain (PDG) vectors in stimulated Brillouin amplification in randomly birefringent fibers is realized by numerically integrating the equations governing the propagation. At the fiber output, the signal tends to align to the PDG vector for large pump power because of the nonlinear polarization pulling effect. The PDG vector, for large random birefringence, aligns to a state that has the same linear component of the pump but opposite circular component.

Published in:

Photonics Technology Letters, IEEE  (Volume:22 ,  Issue: 10 )