Mid-Infrared Supercontinuum Generation in a Varying Dispersion Waveguide for Multi-Species Gas Spectroscopy

Alberto Della Torre; Remi Armand; Milan Sinobad; Kokou Firmin Fiaboe; Barry Luther-Davies; Stephen Madden; Arnan Mitchell; Thach G. Nguyen; David Moss; Jean Michel Hartmann; Vincent Reboud; Jean Marc Fedeli; Christelle Monat; Christian Grillet

doi:10.1109/JSTQE.2022.3185169

Mid-Infrared Supercontinuum Generation in a Varying Dispersion Waveguide for Multi-Species Gas Spectroscopy

Alberto Della Torre^*, Remi Armand, Milan Sinobad, Kokou Firmin Fiaboe, Barry Luther-Davies, Stephen Madden, Arnan Mitchell, Thach G. Nguyen, David Moss, Jean Michel Hartmann, Vincent Reboud, Jean Marc Fedeli, Christelle Monat, Christian Grillet

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

8 Citations (Scopus)

Abstract

We report the experimental generation of a broadband and flat mid-infrared supercontinuum in a silicon-germanium-on-silicon two-stage waveguide. Our particular design combines a short and narrow waveguide section for efficient supercontinuum generation, and an inverse tapered section that promotes the generation of two spectrally shifted dispersive waves along the propagation direction, leading to an overall broader and flatter supercontinuum. The experimentally generated supercontinuum extended from 2.4 to 5.5 μm, only limited by the long wavelength detection limit of our spectrum analyzer. Numerical simulations predict that the supercontinuum actually extends to 7.8 μm. We exploit the enhanced flatness of our supercontinuum for a proof-of-principle demonstration of free-space multi-species gas spectroscopy of water vapor and carbon dioxide.

Original language	English
Article number	5100509
Journal	IEEE Journal of Selected Topics in Quantum Electronics
Volume	29
Issue number	1
DOIs	https://doi.org/10.1109/JSTQE.2022.3185169
Publication status	Published - 1 Jan 2023

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Torre, A. D., Armand, R., Sinobad, M., Fiaboe, K. F., Luther-Davies, B., Madden, S., Mitchell, A., Nguyen, T. G., Moss, D., Hartmann, J. M., Reboud, V., Fedeli, J. M., Monat, C., & Grillet, C. (2023). Mid-Infrared Supercontinuum Generation in a Varying Dispersion Waveguide for Multi-Species Gas Spectroscopy. IEEE Journal of Selected Topics in Quantum Electronics, 29(1), Article 5100509. https://doi.org/10.1109/JSTQE.2022.3185169

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title = "Mid-Infrared Supercontinuum Generation in a Varying Dispersion Waveguide for Multi-Species Gas Spectroscopy",

abstract = "We report the experimental generation of a broadband and flat mid-infrared supercontinuum in a silicon-germanium-on-silicon two-stage waveguide. Our particular design combines a short and narrow waveguide section for efficient supercontinuum generation, and an inverse tapered section that promotes the generation of two spectrally shifted dispersive waves along the propagation direction, leading to an overall broader and flatter supercontinuum. The experimentally generated supercontinuum extended from 2.4 to 5.5 μm, only limited by the long wavelength detection limit of our spectrum analyzer. Numerical simulations predict that the supercontinuum actually extends to 7.8 μm. We exploit the enhanced flatness of our supercontinuum for a proof-of-principle demonstration of free-space multi-species gas spectroscopy of water vapor and carbon dioxide.",

keywords = "Mid-infrared, nonlinear optics, spectroscopy, supercontinuum",

author = "Torre, {Alberto Della} and Remi Armand and Milan Sinobad and Fiaboe, {Kokou Firmin} and Barry Luther-Davies and Stephen Madden and Arnan Mitchell and Nguyen, {Thach G.} and David Moss and Hartmann, {Jean Michel} and Vincent Reboud and Fedeli, {Jean Marc} and Christelle Monat and Christian Grillet",

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Torre, AD, Armand, R, Sinobad, M, Fiaboe, KF, Luther-Davies, B, Madden, S, Mitchell, A, Nguyen, TG, Moss, D, Hartmann, JM, Reboud, V, Fedeli, JM, Monat, C & Grillet, C 2023, 'Mid-Infrared Supercontinuum Generation in a Varying Dispersion Waveguide for Multi-Species Gas Spectroscopy', IEEE Journal of Selected Topics in Quantum Electronics, vol. 29, no. 1, 5100509. https://doi.org/10.1109/JSTQE.2022.3185169

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T1 - Mid-Infrared Supercontinuum Generation in a Varying Dispersion Waveguide for Multi-Species Gas Spectroscopy

AU - Torre, Alberto Della

AU - Armand, Remi

AU - Sinobad, Milan

AU - Fiaboe, Kokou Firmin

AU - Luther-Davies, Barry

AU - Madden, Stephen

AU - Mitchell, Arnan

AU - Nguyen, Thach G.

AU - Moss, David

AU - Hartmann, Jean Michel

AU - Reboud, Vincent

AU - Fedeli, Jean Marc

AU - Monat, Christelle

AU - Grillet, Christian

PY - 2023/1/1

Y1 - 2023/1/1

N2 - We report the experimental generation of a broadband and flat mid-infrared supercontinuum in a silicon-germanium-on-silicon two-stage waveguide. Our particular design combines a short and narrow waveguide section for efficient supercontinuum generation, and an inverse tapered section that promotes the generation of two spectrally shifted dispersive waves along the propagation direction, leading to an overall broader and flatter supercontinuum. The experimentally generated supercontinuum extended from 2.4 to 5.5 μm, only limited by the long wavelength detection limit of our spectrum analyzer. Numerical simulations predict that the supercontinuum actually extends to 7.8 μm. We exploit the enhanced flatness of our supercontinuum for a proof-of-principle demonstration of free-space multi-species gas spectroscopy of water vapor and carbon dioxide.

AB - We report the experimental generation of a broadband and flat mid-infrared supercontinuum in a silicon-germanium-on-silicon two-stage waveguide. Our particular design combines a short and narrow waveguide section for efficient supercontinuum generation, and an inverse tapered section that promotes the generation of two spectrally shifted dispersive waves along the propagation direction, leading to an overall broader and flatter supercontinuum. The experimentally generated supercontinuum extended from 2.4 to 5.5 μm, only limited by the long wavelength detection limit of our spectrum analyzer. Numerical simulations predict that the supercontinuum actually extends to 7.8 μm. We exploit the enhanced flatness of our supercontinuum for a proof-of-principle demonstration of free-space multi-species gas spectroscopy of water vapor and carbon dioxide.

KW - Mid-infrared

KW - nonlinear optics

KW - spectroscopy

KW - supercontinuum

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DO - 10.1109/JSTQE.2022.3185169

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VL - 29

JO - IEEE Journal of Selected Topics in Quantum Electronics

JF - IEEE Journal of Selected Topics in Quantum Electronics

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ER -

Mid-Infrared Supercontinuum Generation in a Varying Dispersion Waveguide for Multi-Species Gas Spectroscopy

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