掺铒光纤光栅的开关动力学特征研究

Switching Dynamics in Erbium-Doped Nonlinear Fiber Grating

研究在连续光入射下渗铒光纤光栅的开关动力学特征，发展其开关过程有类似于相变的特征。数值结果表明，主动光纤光栅在连续光条件下更适合于脉冲串产生。

A new kind of fiber grating - active fiber gratings is proposed to avoide the energy loss in optical pulse switching process of nonlinear fiber gratings. This paper studies the characteristics of switching dynamics in erbium-doped nonlinear fiber gratings under cw light. The results show that under cw light, the switching of the proposed fiber grating is a phase-transition-like process. As a cw light switching device, the active fiber grating is not as good as expected, but it is advatageous as a pulses generator.