Cross dual-microcomb dispersion interferometry ranging

Yang Wang; Jindong Wang; Jingsheng Huang; Weiqiang Wang; Long Huang; Wen Shao; Minhui Cheng; Brent E. Little; Sai Tak Chu; Wei Zhao; Wenfu Zhang

doi:10.1126/sciadv.adt4252

Cross dual-microcomb dispersion interferometry ranging

Yang Wang (Co-first Author)
, Jindong Wang (Co-first Author)
, Jingsheng Huang (Co-first Author)
, Weiqiang Wang
, Long Huang
, Wen Shao
, Minhui Cheng
, Brent E. Little
, Sai Tak Chu
, Wei Zhao
, Wenfu Zhang^*

^*Corresponding author for this work

Department of Physics

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

5 Citations (Scopus)

5 Downloads (CityUHK Scholars)

Abstract

Soliton microcombs offer unprecedented laser sources for high-precision ranging due to their merits of high repetition rate, excellent coherence, and compact size. However, high repetition rate limits the nonambiguity range (NAR) of ranging. Previous dual-comb–based methods can extend the NAR, but asynchronous measurement error (AME) is commonly introduced, which greatly limits the ranging accuracy. Here, we propose a cross dual-microcomb absolute ranging scheme based on dispersion-interferometry method. The AME introduced during dynamic measurement is completely eliminated by one-shot spectral sampling, while the NAR is extended from 3 millimeters to 339 meters by Vernier effect when the repetition-rate jitter is 2 hertz. In addition, the excellent system performance has been verified at different distances and the Allan deviation down to 5.63 nanometers after averaging 56 seconds. Our scheme boasts the potential of straightforward chip architecture and minimal detector requirements and provides an advanced method for future high-precision long-distance ranging and miniaturized lidar systems. © 2025 The Authors, some rights reserved.

Original language	English
Article number	eadt4252
Number of pages	10
Journal	Science Advances
Volume	11
Issue number	33
Online published	15 Aug 2025
DOIs	https://doi.org/10.1126/sciadv.adt4252
Publication status	Published - 15 Aug 2025

Funding

We acknowledge B. Shi and S. Jia for assistance in the experiments. This work is supported by the National Natural Science Foundation of China (grant nos. 62525509, 62075238 and 62205036) the CAS Project for Young Scientists in Basic Research (grant no. YSBR-069), National Key R&D Program of China (grant no. 2021YFB2800603), Innovation Program for Quantum Science and Technology (grant nos. 2021ZD0300701 and 2021ZD0301500), and China Postdoctoral Science Foundation (grant no. 2021 M700614).

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This full text is made available under CC-BY 4.0. https://creativecommons.org/licenses/by/4.0/

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@article{2a95d3259d2e4993ad5ad0339e522855,

title = "Cross dual-microcomb dispersion interferometry ranging",

abstract = "Soliton microcombs offer unprecedented laser sources for high-precision ranging due to their merits of high repetition rate, excellent coherence, and compact size. However, high repetition rate limits the nonambiguity range (NAR) of ranging. Previous dual-comb–based methods can extend the NAR, but asynchronous measurement error (AME) is commonly introduced, which greatly limits the ranging accuracy. Here, we propose a cross dual-microcomb absolute ranging scheme based on dispersion-interferometry method. The AME introduced during dynamic measurement is completely eliminated by one-shot spectral sampling, while the NAR is extended from 3 millimeters to 339 meters by Vernier effect when the repetition-rate jitter is 2 hertz. In addition, the excellent system performance has been verified at different distances and the Allan deviation down to 5.63 nanometers after averaging 56 seconds. Our scheme boasts the potential of straightforward chip architecture and minimal detector requirements and provides an advanced method for future high-precision long-distance ranging and miniaturized lidar systems. {\textcopyright} 2025 The Authors, some rights reserved.",

author = "Yang Wang and Jindong Wang and Jingsheng Huang and Weiqiang Wang and Long Huang and Wen Shao and Minhui Cheng and Little, \{Brent E.\} and Chu, \{Sai Tak\} and Wei Zhao and Wenfu Zhang",

year = "2025",

month = aug,

day = "15",

doi = "10.1126/sciadv.adt4252",

language = "English",

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T1 - Cross dual-microcomb dispersion interferometry ranging

AU - Wang, Yang

AU - Wang, Jindong

AU - Huang, Jingsheng

AU - Wang, Weiqiang

AU - Huang, Long

AU - Shao, Wen

AU - Cheng, Minhui

AU - Little, Brent E.

AU - Chu, Sai Tak

AU - Zhao, Wei

AU - Zhang, Wenfu

PY - 2025/8/15

Y1 - 2025/8/15

N2 - Soliton microcombs offer unprecedented laser sources for high-precision ranging due to their merits of high repetition rate, excellent coherence, and compact size. However, high repetition rate limits the nonambiguity range (NAR) of ranging. Previous dual-comb–based methods can extend the NAR, but asynchronous measurement error (AME) is commonly introduced, which greatly limits the ranging accuracy. Here, we propose a cross dual-microcomb absolute ranging scheme based on dispersion-interferometry method. The AME introduced during dynamic measurement is completely eliminated by one-shot spectral sampling, while the NAR is extended from 3 millimeters to 339 meters by Vernier effect when the repetition-rate jitter is 2 hertz. In addition, the excellent system performance has been verified at different distances and the Allan deviation down to 5.63 nanometers after averaging 56 seconds. Our scheme boasts the potential of straightforward chip architecture and minimal detector requirements and provides an advanced method for future high-precision long-distance ranging and miniaturized lidar systems. © 2025 The Authors, some rights reserved.

AB - Soliton microcombs offer unprecedented laser sources for high-precision ranging due to their merits of high repetition rate, excellent coherence, and compact size. However, high repetition rate limits the nonambiguity range (NAR) of ranging. Previous dual-comb–based methods can extend the NAR, but asynchronous measurement error (AME) is commonly introduced, which greatly limits the ranging accuracy. Here, we propose a cross dual-microcomb absolute ranging scheme based on dispersion-interferometry method. The AME introduced during dynamic measurement is completely eliminated by one-shot spectral sampling, while the NAR is extended from 3 millimeters to 339 meters by Vernier effect when the repetition-rate jitter is 2 hertz. In addition, the excellent system performance has been verified at different distances and the Allan deviation down to 5.63 nanometers after averaging 56 seconds. Our scheme boasts the potential of straightforward chip architecture and minimal detector requirements and provides an advanced method for future high-precision long-distance ranging and miniaturized lidar systems. © 2025 The Authors, some rights reserved.

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UR - https://www.scopus.com/record/pubmetrics.uri?eid=2-s2.0-105013636824&origin=recordpage

U2 - 10.1126/sciadv.adt4252

DO - 10.1126/sciadv.adt4252

M3 - RGC 21 - Publication in refereed journal

C2 - 40815655

SN - 2375-2548

VL - 11

JO - Science Advances

JF - Science Advances

IS - 33

M1 - eadt4252

ER -

Cross dual-microcomb dispersion interferometry ranging

Abstract

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