Phase Noise of Kerr Soliton Dual Microcombs

被引:0
|
作者
Han, Xinjie [1 ]
Geng, Yong [1 ]
Xiao, Yanlan [1 ]
Qian, Sirong [1 ]
Qiu, Kun [1 ]
Zhou, Heng [1 ]
机构
[1] Univ Elect Sci & Technol China, Key Lab Opt Fiber Sensing & Commun Networks, Chengdu 611731, Peoples R China
关键词
phase noise; Kerr soliton dual microcombs; Integrated photonics;
D O I
10.1109/ACP55869.2022.10088716
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
Dissipative Kerr soliton microcombs are believed to be a promising technique to build dual-comb source for applications including precision laser metrology and high-speed optical signal processing. In this Letter, we conduct detailed experimental investigation on the phase coherence between two on-chip Kerr soliton microcombs. Moreover, the technique of 2-point locking and optical frequency division are explored to enhance the dual- microcomb phase coherence, and we demonstrate the best phase noise down to -50 dBc/Hz at 1 Hz offset, -90 dBc/Hz at 1kHz offset, and -120 dBc/Hz at 1 MHz offset. Our study provides a basic reference for both fundamental studies and practical applications of Kerr soliton dual microcombs that entail high mutual phase coherence.
引用
收藏
页码:1892 / 1895
页数:4
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