期刊名称：International Journal of Innovative Research in Science, Engineering and Technology
印刷版ISSN：2347-6710
电子版ISSN：2319-8753
出版年度：2015
期号：NCETAS
页码：25
出版社：S&S Publications
摘要：A balanced optical phase-locked loop (OPLL) has been investigated through simulation experiment,considering the photo-detector shot noise, laser phase noise and loop propagation delay into account. This opticalbalanced loop contains an additional electro-optic phase modulator in the phase-locking branch to improve the trackingcapability of the loop. The tracking behaviour of the OPLL are investigated in terms of pull-in behaviour and phaseerrorvariance in presence of loop-delay. The modified loop achieves lock-in state in a relatively smaller acquisitiontime than the conventional OPLL. In this OPLL, the line-width requirement can be easily increased to a large value, bychanging the phase control parameter.
关键词：Electro-optic phase modulator; Voltage controlled oscillator (VCO); Phase-error standard deviation;(PESD); Loop-delay
