采用基于半导体光放大器(SOA)的“8”字腔激光器结构,当SOA的驱动电流是220mA时,通过调整腔内的偏振控制器(PC),产生脉冲宽度分别是74ns和20ns,重复频率分别是9MHz(基频)和33.4MHz(二倍频)的暗脉冲。改变SOA在非线性放大环镜(NALM)中的位置,暗脉冲的脉宽也有相应的改变。 Using a semiconductor optical amplifier (SOA) based “8” word laser structure, when the SOA drive current is 220mA, by adjusting the cavity of the polarization controller (PC), the resulting pulse width is 74ns and 20ns, respectively, repeat The frequencies are dark pulses of 9MHz (fundamental) and 33.4MHz (double) respectively. Change the position of SOA in the nonlinear amplification ring mirror (NALM), dark pulse pulse width also has the corresponding change.