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Compressive dual-comb spectroscopy

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arxiv 2007.03761 v2 pith:XB6IDIMM submitted 2020-07-03 eess.SP physics.optics

Akira Kawai , Takahiro Kageyama , Ryoichi Horisaki , Takuro Ideguchi This is my paper · ORCID
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keywords compressionbroadbandcompressivedatademonstratedual-comberrorhigh
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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.

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