Chinese Journal of Lasers, Volume. 52, Issue 11, 1111001(2025)

High Resolution Dual‐Comb Spectroscopy Based on Electro‐Optic Intensity Modulation Pulse Picking

Xiangze Ma1...2,3, Wei Long1, Jie Cheng1, Teng Huang1,2,3, Yujia Ji1,2,3, and Dijun Chen12,* |Show fewer author(s)
Author Affiliations
  • 1Aerospace Laser Technology and System Department, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China
  • 2Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, Hangzhou 310024, Zhejiang , China
  • 3Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
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    Figures & Tables(6)
    Power transfer curve of EOAM and input/output waveforms
    Pulse picking using modulation signal generated by EOAM. (a) Time-domain signal before pulse picking with modulation signal generated by EOAM shown by solid rectangular wave; (b) frequency-domain signal before pulse picking; (c) time-domain signal after pulse picking; (d) frequency-domain signal after pulse picking
    Experimental setup
    Dual-comb time-domain interferograms before and after pulse picking. (a) Before pulse picking; (b) after pulse picking
    Radio frequency spectra and Gaussian fitting lines before and after pulse picking. (a) Radio frequency spectrum before pulse picking; (b) magnified view of rectangular box of Fig. 5(a); (c) radio frequency spectrum after pulse picking; (d) magnified view of rectangular box of Fig. 5(c)
    Transmission spectra and fitting residuals before and after pulse picking. (a) Transmission spectrum with resolution of 250 MHz and fitting residual before pulse picking; (b) transmission spectrum with resolution of 31.25 MHz and fitting residual after pulse picking
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    Xiangze Ma, Wei Long, Jie Cheng, Teng Huang, Yujia Ji, Dijun Chen. High Resolution Dual‐Comb Spectroscopy Based on Electro‐Optic Intensity Modulation Pulse Picking[J]. Chinese Journal of Lasers, 2025, 52(11): 1111001

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    Paper Information

    Category: spectroscopy

    Received: Jan. 7, 2025

    Accepted: Mar. 14, 2025

    Published Online: Jun. 14, 2025

    The Author Email: Dijun Chen (djchen@siom.ac.cn)

    DOI:10.3788/CJL250442

    CSTR:32183.14.CJL250442

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