Mid-Infrared Cross-Comb Spectroscopy using Sum-Frequency Sampling

Mingchen Liu; Robert M. Gray; Arkadev Roy; Alireza Marandi

doi:10.1364/CLEO_SI.2021.SM3A.4

Conference on Lasers and Electro-Optics
OSA Technical Digest (Optica Publishing Group, 2021),
paper SM3A.4
•https://doi.org/10.1364/CLEO_SI.2021.SM3A.4

Mid-Infrared Cross-Comb Spectroscopy using Sum-Frequency Sampling

Mingchen Liu, Robert M. Gray, Arkadev Roy, and Alireza Marandi

CLEO: Science and Innovations 2021

San Jose, California United States
9–14 May 2021
ISBN: 978-1-943580-91-0

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Dual-comb Spectroscopy and Sensing (SM3A)

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M. Liu, R. M. Gray, A. Roy, and A. Marandi, "Mid-Infrared Cross-Comb Spectroscopy using Sum-Frequency Sampling," in Conference on Lasers and Electro-Optics, J. Kang, S. Tomasulo, I. Ilev, D. Müller, N. Litchinitser, S. Polyakov, V. Podolskiy, J. Nunn, C. Dorrer, T. Fortier, Q. Gan, and C. Saraceno, eds., OSA Technical Digest (Optica Publishing Group, 2021), paper SM3A.4.

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Abstract

We introduce the cross-comb spectroscopy scheme by sum-frequency sampling of a mid-infrared frequency comb using a near-IR comb with slightly shifted repetition rate. We experimentally demonstrate a 300-nm instantaneous comb-resolved measurement bandwidth around 4 µm.

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