Optical frequency comb generation using two cascaded intensity modulators

被引:17
作者
Shang, Lei [1 ]
Wen, Aijun [1 ]
Lin, Guibin [1 ]
机构
[1] Xidian Univ, State Key Lab Integrated Serv Networks, Xian 710071, Peoples R China
基金
中国国家自然科学基金;
关键词
optical frequency comb (OFC); intensity modulator; optical communications; MICRORESONATOR;
D O I
10.1088/2040-8978/16/3/035401
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
A simple scheme based on two cascaded intensity modulators to generate a flat optical frequency comb (OFC) is proposed and experimentally demonstrated. By setting the two controllable parameters of the intensity modulation (RF amplitude and DC bias), five comb lines with a comb flatness within 0.6 dB are generated. When cascaded with another intensity modulator, 25 comb lines with a spectral power variation of less than 0.9 dB are obtained. The scheme, with a high unwanted-mode suppression ratio 13.1 dB and very low RF signals 0.58V(pi), is relatively simple, cost-efficient and adjustable, with the frequency interval of the OFC varying with the microwave frequency applied to the modulators.
引用
收藏
页数:4
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