• Laser & Optoelectronics Progress
  • Vol. 61, Issue 11, 1116014 (2024)
Yipeng Lun, Xingzhao Huang, Yantong Li, Huakang Yu*, and Zhiyuan Li
Author Affiliations
  • School of Physics and Optoelectronics, South China University of Technology, Guangzhou 510641, Guangdong, China
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    DOI: 10.3788/LOP240680 Cite this Article Set citation alerts
    Yipeng Lun, Xingzhao Huang, Yantong Li, Huakang Yu, Zhiyuan Li. Broadband Ultrashort Pulse Characterization Based on Lithium Niobate Waveguides (Invited)[J]. Laser & Optoelectronics Progress, 2024, 61(11): 1116014 Copy Citation Text show less

    Abstract

    The transverse frequency-resolved optical gating (T-FROG) method based on a thin-film lithium niobate waveguide platform was previously proved to enable the accurate, in situ, and full-parameter characterization of waveguided femtosecond pulses inside integrated circuits. Herein, we confirm that the T-FROG method can operate over broadband spectra (e.g., 150 nm), which are benefited by the broadband operation characteristic features of transverse second-harmonic generation. Experimental results indicate that this method exhibits high sensitivity and signal-to-noise ratio for measuring pulses of various wavelengths. Furthermore, the proposed approach is applied to measure unknown pulses generated from a photonic crystal fiber, and the result indicates its potential for characterizing complex pulses.
    Yipeng Lun, Xingzhao Huang, Yantong Li, Huakang Yu, Zhiyuan Li. Broadband Ultrashort Pulse Characterization Based on Lithium Niobate Waveguides (Invited)[J]. Laser & Optoelectronics Progress, 2024, 61(11): 1116014
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