2024/05/06 by Mikhail Roiz, Roiz, Mikhail, Santeri Larnimaa +7
Biochemistry, Genetics and Molecular Biology · Chemical Engineering · Physics and Astronomy · #Advanced Fiber Laser Technologies #Analytical Chemistry and Sensors #FOS: Physical sciences #Optics (physics.optics) #Spectroscopy Techniques in Biomedical and Chemical Research
paper · pdf · doi:10.48550/arxiv.2405.03182
openalex publication_date 2024/05/06 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
We demonstrate a simple system for dual-comb spectroscopy based on two inherently coherent optical frequency combs generated via seeded parametric down-conversion. The inbuilt coherence is established by making the two combs share a common comb line. We show that the inbuilt coherence makes it possible to use a simple numerical post-processing procedure to compensate for small drifts of the dual-comb interferogram arrival-time and phase. This enables long-time coherent averaging of the interferograms.