8 ps coherent optical uitrashort pulses were produced with a side mode snpp ression ratio of 38 dB from short coupled cayily scmicorductor laser by directly modulation, and its peak output power was 130 mW.

• 利用短耦合腔半导体激光器的直接调制；产生脉宽为17.；8ps；边模抑制比达38dB的相干超短光脉冲；脉冲峰值功率达130mW。