中国物理B ›› 2022, Vol. 31 ›› Issue (8): 84205-084205.doi: 10.1088/1674-1056/ac649a

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Numerical study of converting beat-note signals of dual-frequency lasers to optical frequency combs by optical injection locking of semiconductor lasers

Chenhao Liu(刘晨浩), Haoshu Jin(靳昊澍), Hui Liu(刘辉), and Jintao Bai(白晋涛)   

  1. Institute of Photonics&Photon-technology, Northwest University, Xi'an 710069, China
  • 收稿日期:2022-03-01 修回日期:2022-03-30 接受日期:2022-04-06 出版日期:2022-07-18 发布日期:2022-08-02
  • 通讯作者: Hui Liu E-mail:liuhui_gzs@nwu.edu.cn
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant No. 62005215).

Numerical study of converting beat-note signals of dual-frequency lasers to optical frequency combs by optical injection locking of semiconductor lasers

Chenhao Liu(刘晨浩), Haoshu Jin(靳昊澍), Hui Liu(刘辉), and Jintao Bai(白晋涛)   

  1. Institute of Photonics&Photon-technology, Northwest University, Xi'an 710069, China
  • Received:2022-03-01 Revised:2022-03-30 Accepted:2022-04-06 Online:2022-07-18 Published:2022-08-02
  • Contact: Hui Liu E-mail:liuhui_gzs@nwu.edu.cn
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant No. 62005215).

摘要: The optical injection locking of semiconductor lasers to dual-frequency lasers is studied by numerical simulations. The beat-note signals can be effectively transformed to optical frequency combs due to the effective four wave-mixing in the active semiconductor gain medium. The low-noise Gaussian-like pulse can be obtained by locking the relaxation oscillation and compensating the gain asymmetry. The simulations suggest that pulse trains of width below 30 ps and repetition rate in GHz frequency can be generated simply by the optical injection locking of semiconductor lasers. Since the optical injection locking can broaden the spectrum and amplify the optical power simultaneously, it can be a good initial stage for generating optical frequency combs from dual-frequency lasers by multi-stage of spectral broadening in nonlinear waveguides.

关键词: optical frequency combs, optical injection locking, dual-frequency lasers

Abstract: The optical injection locking of semiconductor lasers to dual-frequency lasers is studied by numerical simulations. The beat-note signals can be effectively transformed to optical frequency combs due to the effective four wave-mixing in the active semiconductor gain medium. The low-noise Gaussian-like pulse can be obtained by locking the relaxation oscillation and compensating the gain asymmetry. The simulations suggest that pulse trains of width below 30 ps and repetition rate in GHz frequency can be generated simply by the optical injection locking of semiconductor lasers. Since the optical injection locking can broaden the spectrum and amplify the optical power simultaneously, it can be a good initial stage for generating optical frequency combs from dual-frequency lasers by multi-stage of spectral broadening in nonlinear waveguides.

Key words: optical frequency combs, optical injection locking, dual-frequency lasers

中图分类号:  (Metrological applications; optical frequency synthesizers for precision spectroscopy)

  • 42.62.Eh
42.60.Rn (Relaxation oscillations and long pulse operation) 42.65.-k (Nonlinear optics)