• Chinese Optics Letters
  • Vol. 22, Issue 8, 081301 (2024)
Zhuopei Yu1, Weihong Hua1, Chenxi Zhang1, Runlin Miao2..., Ke Yin1,* and Tian Jiang3,**|Show fewer author(s)
Author Affiliations
  • 1College of Advanced Interdisciplinary Studies, National University of Defense Technology, Changsha 410073, China
  • 2National Innovation Institute of Defense Technology, Academy of Military Sciences PLA China, Beijing 100071, China
  • 3Institute for Quantum Science and Technology, National University of Defense Technology, Changsha 410073, China
  • show less
    DOI: 10.3788/COL202422.081301 Cite this Article Set citation alerts
    Zhuopei Yu, Weihong Hua, Chenxi Zhang, Runlin Miao, Ke Yin, Tian Jiang, "Comparative study on pump frequency tuning and self-injection locking in Kerr microcomb generation," Chin. Opt. Lett. 22, 081301 (2024) Copy Citation Text show less

    Abstract

    The optical frequency comb has attracted considerable interest due to its diverse applications in optical atomic clocks, ultra-low-noise microwave generation, dual-comb spectroscopy, and optical communications. The merits of large frequency spacing, high integration, and low power consumption have shown that microresonator-based Kerr optical frequency combs will become mainstream in the future. Two methods of pump frequency tuning and self-injection locking were used to obtain Kerr combs in the same silicon nitride microresonators with free spectral ranges of 50 GHz and 100 GHz. Single-soliton combs are realized with both methods. Simplicity, pump power, spectrum bandwidth, conversion efficiency, and linewidth are compared and analyzed. Our results show that the advantages of pump frequency tuning are a wider spectrum and higher soliton power while the advantages of self-injection locking are simplicity, compactness, low cost, significant linewidth narrowing, and high conversion efficiency.
    Dint(μ)μω0D1μ=D2μ22+D3μ36.

    View in Article

    ΔΩRaman=8D2τR(Δδ)Q15ω0D121τs4.

    View in Article

    Zhuopei Yu, Weihong Hua, Chenxi Zhang, Runlin Miao, Ke Yin, Tian Jiang, "Comparative study on pump frequency tuning and self-injection locking in Kerr microcomb generation," Chin. Opt. Lett. 22, 081301 (2024)
    Download Citation