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制作了1.55μm InGaAsP-InP三段式混合光栅型DFB激光器.观察到了20GHz左右的自脉动信号.讨论了自脉动的产生机制,并且对调相区所起的作用进行了研究.
A 1.55μm InGaAsP-InP mixed grating DFB laser was fabricated and a self-pulsating signal of about 20GHz was observed.The mechanism of self-pulsation was discussed and the effect of the phase-modulated region was also investigated.