The effects of randomly varying birefringence on soliton interactions in optical fibers are studied. It is shown that for initial separations of less than 10 pulse widths, the phase-dependent short-range interaction dominates. For separations larger than 10 pulse widths, the soliton interacts through the dispersive radiation that they generate. This interaction is too weak to explain the phase-independent long-range soliton interaction observed experimentally.
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