Stable multi-frequency generator based on phase-locked optical frequency combs  

作　　者：张超 孙东宁 谢玮霖 夏宗杨 王锶惟 石宏霄 佟亦天 董毅 胡卫生 

机构地区：[1]State Key Laboratory of Advanced Optical Communication Systems and Networks,Shanghai Jiao Tong University

出　　处：《Chinese Optics Letters》2014年第2期14-17,共4页中国光学快报（英文版）

基　　金：supported by the National "973" Program of China(No.2012CB315602);the National Natural Science Foundation of China(No.61225004)

摘　　要：A photonic generation of multi-frequency source based on the heterodyne of two phase-locked optical frequency combs（OFCs） is proposed and demonstrated.By applying an optical phase-locked loop,the phase noise induced by optical links is decreased by approximately 70,66,and 35 dB at 0.01,0.1,and 1.0 Hz offset frequencies,respectively.The proposed scheme provides 8 radio frequency signals,the frequencies of which span from 540 to 4040 MHz,with a 500-MHz interval.The number of generated signals can be readily scaled by using OFCs with broader bands,whereas the frequencies can be scaled by tuning the repetition rates of OFCs.A photonic generation of multi-frequency source based on the heterodyne of two phase-locked optical frequency combs（OFCs） is proposed and demonstrated.By applying an optical phase-locked loop,the phase noise induced by optical links is decreased by approximately 70,66,and 35 dB at 0.01,0.1,and 1.0 Hz offset frequencies,respectively.The proposed scheme provides 8 radio frequency signals,the frequencies of which span from 540 to 4040 MHz,with a 500-MHz interval.The number of generated signals can be readily scaled by using OFCs with broader bands,whereas the frequencies can be scaled by tuning the repetition rates of OFCs.

关 键 词：Natural frequencies Phase locked loops 

分 类 号：TN911.8[电子电信—通信与信息系统] TM935[电子电信—信息与通信工程]