Generation and noise analysis of a wide-band optical frequency comb based on recirculating frequency shifter  

作　　者：于瀛 雷诚 陈明华 陈宏伟 杨四刚 谢世钟 

机构地区：[1]Tsinghua National Laboratory for Information Science and Technology(TNList) Department of Electronic Engineering,Tsinghua University

出　　处：《Chinese Optics Letters》2014年第10期1-4,共4页中国光学快报（英文版）

基　　金：supported by the National 973 Program of China(No.2012CB315703);the National Natural Science Foundation of China(Nos.61132004,61335002,61322113,and 61120106001);the Program for New Century Excellent Talents in University(No.NCET-10-0520);the Young top-notch Talent Program sponsored by Ministry of Organization,China;the Tsinghua University Initiative Scientific Research Program

摘　　要：By optimizing the gain configuration and length of the loop, a 90-tone optical frequency comb （OFC） is successfully generated based on recirculating frequency shifter structure. The peak-to-peak power fluctuation of the 90-tone OFC is 4.26 dB and the tone-to-noise ratio is higher than 19.17 dB. To further analyze the noise accumulation feature of the tones when travelling around the loop, linewidth of the tones is measured by delayed self-heterodyne interferometer structure. The result shows the linewidth of the tones deteriorates little during the recirculating process, indicating that the generated OFC is an ideal multi-wavelength source for high-speed communication svstems.By optimizing the gain configuration and length of the loop, a 90-tone optical frequency comb （OFC） is successfully generated based on recirculating frequency shifter structure. The peak-to-peak power fluctuation of the 90-tone OFC is 4.26 dB and the tone-to-noise ratio is higher than 19.17 dB. To further analyze the noise accumulation feature of the tones when travelling around the loop, linewidth of the tones is measured by delayed self-heterodyne interferometer structure. The result shows the linewidth of the tones deteriorates little during the recirculating process, indicating that the generated OFC is an ideal multi-wavelength source for high-speed communication svstems.

关 键 词：Natural frequencies 

分 类 号：TN929.1[电子电信—通信与信息系统]