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《Chinese Journal of Lasers》 2018-12
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Generation of Flat Optical Frequency Comb Based on Asynchronous RF-Signal-Driven Cascaded Phase Modulators

Liu Haoming;Pan Wei;Lu Bing;Yu Ge;School of Information Science and Technology,Southwest Jiaotong University;  
Based on cascaded phase modulators(PM),a scheme to generate a optical frequency comb(OFC)with adjustable comb number and comb spacing is proposed and experimentally demonstrated.The sinusoidal radio frequency(RF)signal and its double-frequency signal are used to drive the two cascaded PMs,respectively,simultaneously a small frequency offset is introduced in the second RF signal,and finally aphase-insensitive and high flatness OFC is obtained.The comb number and flatness are regulated by the modulation index of these two cascaded PMs.When the frequency offset is 10-5 times the frequency of the second RF signal,the flatness of this OFC is less than 3dB.The experimental results show that the comb numbers are 7,9,and 11,the comb spacing is 5.5GHz and 7.5GHz,and the flatness is smaller than 2.4dB for the generated OFC.
【Fund】: 国家自然科学基金(61775185);; 国家863计划(2015AA016903);; 四川省国际科技合作重点项目(2018HH0002)
【CateGory Index】: TN929.1
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1 Yuelan Lu ~(1*),Yongwei Xing,and Yongkang Dong 1 College of Science,Harbin Engineering University,Harbin 150001,China 2 Institute of Opto-Electronics,Harbin Institute of Technology,Harbin 150001,China;Equal-amplitude optical comb generation using multi-frequency phase modulation in optical fibers[J];Chinese Optics Letters;2010-03
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1 Fan Yiyi;Feng Suchun;Key Laboratory of All Optical Network & Advanced Telecommunication Network, Ministry of Education, Institute of Lightwave Technology, Beijing Jiaotong University;;Progress in Optical Frequency-Locked Multicarrier Source[J];激光与光电子学进展;2015-02
【Secondary Citations】
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1 Yingfan Liu Zhiwei L(?)Yongkang Dong and Qiang Li Institute of Opto-Electronics,Harbin Institute of Technology,Harbin 150001;Research on stimulated Brillouin scattering suppression based on multi-frequency phase modulation[J];Chinese Optics Letters;2009-01
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