Frequency-domain model of optical frequency-comb generation in optical resonators with second- and third-order nonlinearities

Enxu Zhu, Chaoying Zhao, and Hebin Li
Phys. Rev. A 102, 053508 – Published 10 November 2020

Abstract

We developed a frequency-domain model describing optical frequency-comb generation in optical resonators with second- and third-order nonlinearities. Compared with time-domain models, our model in principle allows one to express the cavity dispersion accurately, avoiding the dispersion being truncated beyond a certain order. Moreover, the frequency-domain model can readily include frequency dependence of system parameters, such as the linear absorption and the cavity coupling ratio. To demonstrate the validity of our model, we numerically simulated quadratic combs in a singly resonant second-harmonic-generation cavity and Kerr combs in a microresonator as two examples. The simulated results obtained from the frequency-domain model agree well with those given by previous time-domain models. A system containing both second- and third-order nonlinearities can give rise to many novel physical dynamics. The developed frequency-domain model will contribute to understanding optical frequency-comb generation assisted by multiorder nonlinear processes in various optical resonators.

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  • Received 17 September 2020
  • Accepted 27 October 2020

DOI:https://doi.org/10.1103/PhysRevA.102.053508

©2020 American Physical Society

Physics Subject Headings (PhySH)

  1. Research Areas
Atomic, Molecular & Optical

Authors & Affiliations

Enxu Zhu1, Chaoying Zhao1,2,*, and Hebin Li3

  • 1College of Science, Hangzhou Dianzi University, Zhejiang 310018, China
  • 2State Key Laboratory of Quantum Optics and Quantum Optics Devices, Institute of Opto-Electronics, Shanxi University, Taiyuan 030006, China
  • 3Department of Physics, Florida International University, Miami, Florida 33199, USA

  • *Corresponding author: zchy49@163.com

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Issue

Vol. 102, Iss. 5 — November 2020

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