Towards high-power, high-coherence, integrated photonic mmWave platform with microcavity solitons

Beichen Wang; Jesse S. Morgan; Keye Sun; Mandana Jahanbozorgi; Zijiao Yang; Madison Woodson; Steven Estrella; Andreas Beling; Xu Yi

doi:10.1038/s41377-020-00445-x

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Towards high-power, high-coherence, integrated photonic mmWave platform with microcavity solitons

Articles

- Towards high-power, high-coherence, integrated photonic mmWave platform with microcavity solitons
- Light: Science & Applications Vol. 10, Issue 1, Pages: 50-59(2021)
- Affiliations：
  
  1.Department of Electrical and Computer Engineering, University of Virginia, Charlottesville, VA 22904, USA
  2.Department of Physics, University of Virginia, Charlottesville, VA 22904, USA
  3.Freedom Photonics LLC, Santa Barbara, CA, USA
- Author bio：
  
  Andreas Beling (andreas@virginia.edu)
  Xu Yi (yi@virginia.edu)
- Funds：
- DOI：10.1038/s41377-020-00445-x
  CLC：
- Published：2021，
  
  Published Online：01 January 2021，
  
  Received：30 August 2020，
  
  Revised：24 November 2020，
  
  Accepted：26 November 2020
- Accepted：
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Wang, B. C. et al. Towards high-power, high-coherence, integrated photonic mmWave platform with microcavity solitons. Light: Science & Applications, 10, 50-59 (2021).
DOI：

Wang, B. C. et al. Towards high-power, high-coherence, integrated photonic mmWave platform with microcavity solitons. Light: Science & Applications, 10, 50-59 (2021). DOI： 10.1038/s41377-020-00445-x.

摘要

Abstract

Millimetre-wave (mmWave) technology continues to draw great interest due to its broad applications in wireless communications

radar

and spectroscopy. Compared to pure electronic solutions

photonic-based mmWave generation provides wide bandwidth

low power dissipation

and remoting through low-loss fibres. However

at high frequencies

two major challenges exist for the photonic system: the power roll-off of the photodiode

and the large signal linewidth derived directly from the lasers. Here

we demonstrate a new photonic mmWave platform combining integrated microresonator solitons and high-speed photodiodes to address the challenges in both power and coherence. The solitons

being inherently mode-locked

are measured to provide 5.8 dB additional gain through constructive interference among mmWave beatnotes

and the absolute mmWave power approaches the theoretical limit of conventional heterodyne detection at 100 GHz. In our free-running system

the soliton is capable of reducing the mmWave linewidth by two orders of magnitude from that of the pump laser. Our work leverages microresonator solitons and high-speed modified uni-traveling carrier photodiodes to provide a viable path to chip-scale

high-power

low-noise

high-frequency sources for mmWave applications.

关键词

Keywords

references

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