报道了两个增益开关调制的法布里珀罗半导体激光器互注入锁定实验方案,可产生双波长可调谐光脉冲。该装置对两个结构基本相同的法布里珀罗半导体激光器做增益开关调制,产生多模光脉冲输出;然后利用两个光纤光栅作为滤波元件,通过调节可调谐光延迟线(VODL2),可使得双波长光脉冲在两个法布里珀罗激光器之间相互注入锁定,从而在输出端得到高边模抑制比的双波长光脉冲输出。然后再通过应力作用在两个光纤光栅上以改变它们的反射波长和适当调整另一个可调谐光延迟线(VODL1)长度,可得到不同的双波长的光脉冲输出,而重复频率保持524.6 MHz不变。在13.2 nm调谐范围内边模抑制比高于25 dB,系统稳定且波长调节方便。 Two gain switching modulated Fabry-Perot semiconductor lasers are reported for mutual injection locking experiments to generate dual-wavelength tunable optical pulses. The device performs the gain switching modulation on two Fabry-Perot semiconductor lasers with basically the same structure to generate multi-mode optical pulse output; then, by using two FBG as the filtering components, the tunable optical delay line (VODL2) So that the two-wavelength light pulse is injected and locked between two Fabry-Perot lasers to obtain a dual wavelength optical pulse output with a high side mode rejection ratio at the output end. And then through the stress on the two FBG to change their reflection wavelength and adjust the length of the other tunable optical delay line (VODL1), you can get a different dual-wavelength optical pulse output, and the repetition rate to keep 524.6 MHz change. The side mode suppression ratio is higher than 25 dB in the 13.2 nm tuning range and the system is stable and the wavelength adjustment is convenient.