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  • Received: Aug. 24, 2016

    Accepted: Oct. 14, 2016

    Posted: Jan. 28, 2019

    Published Online: Jul. 26, 2018

    The Author Email: Ziping Zhang (

    DOI: 10.3788/COL201715.010010

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    Ziping Zhang, Yitang Dai, Feifei Yin, Pan Ou, Yue Zhou, Jianqiang Li, Kun Xu. Single-longitudinal-mode, narrow-linewidth oscillation from a high-Q photonic-electronic hybrid cavity[J]. Chinese Optics Letters, 2017, 15(1): 010010

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Chinese Optics Letters, Vol. 15, Issue 1, 010010 (2017)

Single-longitudinal-mode, narrow-linewidth oscillation from a high-Q photonic-electronic hybrid cavity

Ziping Zhang1,*, Yitang Dai1, Feifei Yin1, Pan Ou2, Yue Zhou1, Jianqiang Li1, and Kun Xu1,3

Author Affiliations

  • 1State Key Laboratory of Information Photonics & Optical Communications (Beijing University of Posts and Telecommunications), Beijing 100876, China
  • 2School of Instrument Science and Optoelectronic Engineering (Beihang University), Beijing 100191, China
  • 3School of Science, Beijing University of Posts and Telecommunications, Beijing 100876, China


We propose a high-Q photonic-electronic hybrid cavity for single-longitudinal-mode narrow-linewidth oscillation, where part of the cavity is in the radio frequency (RF) domain by a pair of frequency conversions. In the RF part, we can easily achieve MHz filtering and a large delay by inserting an electronic filter. In mathematics, we prove that the frequency conversion pair and electronic filter in between can be equivalent to a high-Q optical filter cascaded low-noise optical amplifier as a whole. Finally, the 20-dB bandwidth of oscillation is 1/20 of that of an optical local oscillator, and the maximum phase noise suppression can reach 65 dB.