Analysis of pulse trapping of continuous wave in nonlinear optical loop mirror and all-optical switching

摘要

When two orthogonally polarized ultrashort pulses satisfy a group velocity matching condition and they are temporally overlapped in a birefringent fiber, a nonlinear fiber phenomenon of pulse trapping and amplification is induced. The two pulses trap each other and co-propagate along the fiber due to cross-phase modulation [1]. The pulse trapping phenomenon is also induced between a continuous-wave (cw) beam and an ultrashort pulse in birefringent fibers, and an ultrashort pulse is generated from the cw beam [2].