Cross-polarization modulation solitons in birefringent optical fibers

This paper extends the theory of polarization domain solitons to both counter and copropagating beams of different frequency in highly birefringent (hibi), twisted and spun optical fibers. A new analytical domain wall soliton solutions is obtained whose propagation velocity may be controlled, and even stopped, by simply controlling the input relative intensity of the two beams. These findings may open the way to a new class of low-power, nonlinear optical data storage and buffer devices based on the dynamic control of polarization encoded information in fiber loop memories. Moreover, cross-polarization modulation interactions between wavelength channels have significant impact on polarization multiplexed wavelength-division-multiplexed (WDM) transmissions.