• Infrared and Laser Engineering
  • Vol. 54, Issue 5, 20250064 (2025)
Caixin CHEN1, Sixuan LI1, Tingting LIU1,2, and Ming YAN1,2
Author Affiliations
  • 1State Key Laboratory of Precision Spectroscopy, East China Normal University, Shanghai 200062, China
  • 2Chongqing Key Laboratory of Precision Optics, Chongqing Institute of East China Normal University, Chongqing 401121, China
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    DOI: 10.3788/IRLA20250064 Cite this Article
    Caixin CHEN, Sixuan LI, Tingting LIU, Ming YAN. Research on single-cavity dual-comb integrated mid-infrared light source(invited)[J]. Infrared and Laser Engineering, 2025, 54(5): 20250064 Copy Citation Text show less
    (a) Experimental setup of a mid-infrared dual-comb system based on a single-cavity dual-wavelength mode-locked laser (MLL); (b) Dual-comb repetition rate difference locking scheme with common hydrogen clock reference
    Fig. 1. (a) Experimental setup of a mid-infrared dual-comb system based on a single-cavity dual-wavelength mode-locked laser (MLL); (b) Dual-comb repetition rate difference locking scheme with common hydrogen clock reference
    The output characteristics of dual-comb light source. The output optical spectrums of (a) oscillator and (b) amplifier; (c)-(d) The auto-correlation traces of comb1 and comb2 after amplification and compression; (e)-(f) The radio spectra of dual-comb at different repetition rate difference
    Fig. 2. The output characteristics of dual-comb light source. The output optical spectrums of (a) oscillator and (b) amplifier; (c)-(d) The auto-correlation traces of comb1 and comb2 after amplification and compression; (e)-(f) The radio spectra of dual-comb at different repetition rate difference
    (a)-(b) Temporal drifts of repetition rates of the bidirectional pulses; (c)-(d) Comparison of ∆fr drifts with and without phase-locking
    Fig. 3. (a)-(b) Temporal drifts of repetition rates of the bidirectional pulses; (c)-(d) Comparison of ∆fr drifts with and without phase-locking
    (a) Multiperiod time domain interferogram; (b) The radio frequency domain multi-heterodyne beat notes
    Fig. 4. (a) Multiperiod time domain interferogram; (b) The radio frequency domain multi-heterodyne beat notes
    (a)-(b) The mid-infrared optical spectrums of two combs after Si3N4 waveguide
    Fig. 5. (a)-(b) The mid-infrared optical spectrums of two combs after Si3N4 waveguide
    Caixin CHEN, Sixuan LI, Tingting LIU, Ming YAN. Research on single-cavity dual-comb integrated mid-infrared light source(invited)[J]. Infrared and Laser Engineering, 2025, 54(5): 20250064
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