Compressive dual-comb spectroscopy
Signal Processing
2025-05-06 v2 Optics
Abstract
Broadband, high resolution and rapid measurement of dual-comb spectroscopy (DCS) generates a large amount of data stream. We numerically demonstrate significant data compression of DCS spectra by using a compressive sensing technique. Our numerical simulation shows a compression rate of more than 100 with 3% error in mole fraction estimation of mid-infrared (MIR) DCS of two molecular species in a broadband (~30 THz) and high resolution (~115 MHz) condition. We also numerically demonstrate a massively parallel MIR DCS spectrum of 10 different molecular species can be reconstructed with a compression rate of 10.5 with a transmittance error of 0.003 from the original spectrum.
Keywords
Cite
@article{arxiv.2007.03761,
title = {Compressive dual-comb spectroscopy},
author = {Akira Kawai and Takahiro Kageyama and Ryoichi Horisaki and Takuro Ideguchi},
journal= {arXiv preprint arXiv:2007.03761},
year = {2025}
}