非理想相位传递函数对OPLL性能的影响

EFFECTS OF NON-IDEAL PHASE TRANSFER FUNCTION ON THE PERFORMANCE OF OPLL

本文给出了采用半导体激光器作为光锁相环(OPLL)本振的相位传递函数(PTF),指出:OPLL本振的PTF不是理想积分型的。同时,讨论了这种非理想PTF对OPLL性能的影响。

The performance of optical phase-locked loop (OPLL) and the effects of weakly optical feedback on the performance of OPLL are pre- sented with non-ideal phase transfer function for the local oscillator. The phase noise variance of OPLL can be minimum with suitably selecting the loop natural frequency.