• Advanced Photonics Nexus
  • Vol. 3, Issue 4, 046006 (2024)
Zhichuang Wang1,2,†, Jiawen Zhi3, Hanzhong Wu3,*, Brent E. Little1..., Sai T. Chu4, Jie Zhang3, Zehuang Lu3, Chenggang Shao3,*, Weiqiang Wang1,2,* and Wenfu Zhang1,2,*|Show fewer author(s)
Author Affiliations
  • 1Chinese Academy of Sciences, Xi’an Institute of Optics and Precision Mechanics, State Key Laboratory of Transient Optics and Photonics, Xi’an, China
  • 2University of Chinese Academy of Sciences, Beijing, China
  • 3Huazhong University of Science and Technology, PGMF and School of Physics, MOE Key Laboratory of Fundamental Physical Quantities Measurements, Hubei Key Laboratory of Gravitation and Quantum Physics, Wuhan, China
  • 4City University of Hong Kong, Department of Physics and Materials Science, Hong Kong, China
  • show less
    DOI: 10.1117/1.APN.3.4.046006 Cite this Article Set citation alerts
    Zhichuang Wang, Jiawen Zhi, Hanzhong Wu, Brent E. Little, Sai T. Chu, Jie Zhang, Zehuang Lu, Chenggang Shao, Weiqiang Wang, Wenfu Zhang, "Rapid and precise distance measurement with hybrid comb lasers," Adv. Photon. Nexus 3, 046006 (2024) Copy Citation Text show less

    Abstract

    Dual-comb ranging allows rapid and precise distance measurement and can be universally implemented on different comb platforms, e.g., fiber combs and microcombs. To date, dual-fiber-comb ranging has become a mature and powerful tool for metrology and industry, but the measurement speed is often at a kilohertz level due to the lower repetition rates. Recently, dual-microcomb ranging has given rise to a new opportunity for distance measurement, in consequence of its small footprint and high repetition rates, but full-comb stabilization is challenging. Here, we report a dual-hybrid-comb distance meter capable of ultrarapid and submicrometer precision distance measurement, which can not only leverage the advantage of easy locking inherited from the fiber comb but also sustain ultrarapid measurement speed due to the microcomb. The experimental results show that the measurement precision can reach 3.572 μm at 4.136 μs and 432 nm at 827.2 μs averaging time. Benefiting from the large difference between the repetition rates of the hybrid combs, the measurement speed can be enhanced by 196 folds, in contrast to the dual-fiber-comb system with about a 250 MHz repetition rate. Our work can offer a solution for the fields of rapid dimensional measurement and spectroscopy.
    EMC=pAp,MCexp[2πi(p×frep,MC+fpump,MC)t+iφ0,MC],

    View in Article

    EFC=qAq,FCexp[2πi(q×frep,FC+fcenter,FC)t+iφ0,FC],

    View in Article

    EbeatpqAp,MCAq,FCexp[2πi(p×frep,MCq×frep,FC+fpump,FCfcenter,FC)t+iφ0,MCiφ0,FC]pqexp[2πi(p×frep,MCq×frep,FC+fb)t+iφ0,MCiφ0,FC].

    View in Article

    L=12·cng·(Nfrep,MC+τ·frep,MC196×frep,FCfrep,MC)=12·cng·frep,MC·(N+τ×Δfeff),

    View in Article

    uL2=(Lngung)2+(Lfrep,MCufrep,MC)2+(Lτuτ)2+(LΔfeffuΔfeff)2=(Lngung)2+(Lfrep,MCufrep,MC)2+(12·cng·Δfefffrep,MCuτ)2+(12·cng·τfrep,MCuΔfeff)2.

    View in Article

    Zhichuang Wang, Jiawen Zhi, Hanzhong Wu, Brent E. Little, Sai T. Chu, Jie Zhang, Zehuang Lu, Chenggang Shao, Weiqiang Wang, Wenfu Zhang, "Rapid and precise distance measurement with hybrid comb lasers," Adv. Photon. Nexus 3, 046006 (2024)
    Download Citation