The Studies On The Properties Of Polarization Solitons And PMD In Optical Fibers

This paper focuses on the studies on the properties of polarization solitons in strongly birefringent fibers and standard single-mode fibers. It is proved that nonlinear optical pulses (solitons) have inherent ability to suppress PMD. This adaptive ability to PMD owes to nonlinear Kerr effect (Cross-Phase Modulation). Due to the balance of XPM and PMD. Some phenomena appear such as soliton self-trapping and a breather pair. And optical pulses can propagate stably in long transmission based on soliton self-trapping. However, third-order dispersion (TOD) will affect the stability of soliton propagation when the wavelength of signal is in the zero dispersion wavelength regions. Through studying the effect of third-order dispersion on polarization solitons in short and long transmission, it is proposed that the compensation techniques to third-order dispersion based on dispersion-managed scheme. At the same time, we find an interesting result - the interaction of negative TOD and XPM can enhance pulse compression in fast axis and the interaction of positive TOD and XPM can enhance pulse compression in slow axis. Moreover, This paper also studies the effect of random birefringence on optical pulses in standard single-mode fibers. The soliton transmission control techniques in time and frequency domains (synchronous amplitude modulation and sliding frequency filter) are applied into transmission lines periodically to remove the dispersive waves and suppress timing jitter caused by random birefringence.