提出了一种用两个光纤光栅作法布里珀罗半导体激光器的外反馈元件 ,在外加正弦信号的驱动下工作在增益开关状态的双波长自注入式脉冲半导体激光器。对两个波长对应的谐振腔的腔长相同与不同的两种情况进行了实验研究 ,并成功地获得了波长为 15 5 5 .97nm和 15 5 7.9nm ,脉冲宽度约为 45ps和 70ps,重复频率约为 2GHz的双波长光脉冲信号 A two-wavelength self-implanted pulsed semiconductor laser operating in a gain switching state driven by an external sinusoidal signal is proposed, which uses an external feedback element of two fiber grating Fabry-Perot semiconductor lasers. Experiments were carried out on two identical and different cavity lengths for the two wavelength-matched resonators. Wavelengths of 15 5 5 .97 nm and 15 5 7.9 nm with pulse widths of about 45 ps and 70 ps were successfully obtained Dual wavelength optical pulse signal with a frequency of about 2GHz