Comparison and Optimization of Phase Locked Loop and Injection Locking Techniques for Optoelectronic Oscillators

被引：3

作者：

Zheng J.-C. ^{[1
]}

Jin T. ^{[1
]}

Chi H. ^{[1
]}

Tong G.-C. ^{[1
]}

Zhu X. ^{[1
]}

Lai T.-H. ^{[1
]}

机构：

[1] College of Information Science and Electronic Engineering, Zhejiang University, Hangzhou

来源：

Guangzi Xuebao/Acta Photonica Sinica | 2017年 / 46卷 / 04期

基金：

中国国家自然科学基金;

关键词：

Injection locked; Losing lock; Optoelectronic oscillator; Phase noise; Phase-locked loop;

D O I：

10.3788/gzxb20174604.0423002

中图分类号：

学科分类号：

摘要：

The characteristics of two types of Optoelectronic Oscillators (OEOs) based on phase-locked loop technique and injection-locked technique were analyzed and compared. The noise transfer functions of the two types of OEOs were deduced and verified by experiments. The similarities and the respective merits between the two techniques were discussed. There is a problem of losing lock in the two types of OEOs because the optical fiber has a high sensitivity to temperature. To solve this problem, a locking state monitoring and feedback system was designed according to the phase difference between the output signal and the reference signal. The system was also verified by experiments. © 2017, Science Press. All right reserved.

引用

共 13 条

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