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Frequency stabilization of a quantum cascade laser by weak resonant feedback from a Fabry-Perot cavity

Published by National Institute of Standards and Technology | National Institute of Standards and Technology | Metadata Last Checked: August 02, 2025 | Last Modified: 2021-05-18 00:00:00

Data from peer-reviewed publication: G. Zhao et al., Frequency stabilization of a quantum cascade laser by weak resonant feedback from a Fabry-Perot cavity, Optics Letters. Frequency-stabilized mid-infrared lasers are valuable tools for precision molecular spectroscopy. However, their implementation remains limited by complicated stabilization schemes. Here we achieve optical self-locking of a quantum cascade laser to the resonant leak-out field of a highly mode-matched two-mirror cavity. The result is a simple approach to achieving ultra-pure frequencies from high-powered mid-infrared lasers. For short time scales (<0.1 ms), we report a linewidth reduction factor of 3×10^(-6) to a linewidth of 12 Hz. Furthermore, we demonstrate two-photon cavity-enhanced absorption spectroscopy of an N2O overtone transition near a wavelength of 4.53 um.

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DOI Access for Frequency stabilization of a quantum cascade laser by weak resonant feedback from a Fabry-Perot cavity

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Fig. 1: Conceptualization and model for a quantum cascade laser coupled to a Fabry-Perot cavity by weak optical feedback.

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SHA256 File for Fig. 1: Conceptualization and model for a quantum cascade laser coupled to a Fabry-Perot cavity by weak optical feedback.

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Fig. 4: QCL line width analysis - power spectral densities

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SHA256 File for Fig. 4: QCL line width analysis - power spectral densities

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Fig. 5: Two-photon absorption spectroscopy of N2O in the mid-infrared

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SHA256 File for Fig. 5: Two-photon absorption spectroscopy of N2O in the mid-infrared

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@type	dcat:Dataset
accessLevel	public
accrualPeriodicity	irregular
bureauCode	[ "006:55" ]
contactPoint	{ "fn": "Adam Fleisher", "hasEmail": "mailto:adam.fleisher@nist.gov" }
description	Data from peer-reviewed publication: G. Zhao et al., Frequency stabilization of a quantum cascade laser by weak resonant feedback from a Fabry-Perot cavity, Optics Letters. Frequency-stabilized mid-infrared lasers are valuable tools for precision molecular spectroscopy. However, their implementation remains limited by complicated stabilization schemes. Here we achieve optical self-locking of a quantum cascade laser to the resonant leak-out field of a highly mode-matched two-mirror cavity. The result is a simple approach to achieving ultra-pure frequencies from high-powered mid-infrared lasers. For short time scales (<0.1 ms), we report a linewidth reduction factor of 3×10^(-6) to a linewidth of 12 Hz. Furthermore, we demonstrate two-photon cavity-enhanced absorption spectroscopy of an N2O overtone transition near a wavelength of 4.53 um.
distribution	[ { "title": "DOI Access for Frequency stabilization of a quantum cascade laser by weak resonant feedback from a Fabry-Perot cavity", "accessURL": "https://doi.org/10.18434/mds2-2409" }, { "title": "Fig. 1: Conceptualization and model for a quantum cascade laser coupled to a Fabry-Perot cavity by weak optical feedback.", "format": ".xls", "mediaType": "application/vnd.ms-excel", "downloadURL": "https://data.nist.gov/od/ds/mds2-2409/Fleisher_stableQCL_rev1_fig1_data.xls" }, { "title": "SHA256 File for Fig. 1: Conceptualization and model for a quantum cascade laser coupled to a Fabry-Perot cavity by weak optical feedback.", "mediaType": "text/plain", "downloadURL": "https://data.nist.gov/od/ds/mds2-2409/Fleisher_stableQCL_rev1_fig1_data.xls.sha256" }, { "title": "Fig. 4: QCL line width analysis - power spectral densities", "format": ".csv", "mediaType": "application/vnd.ms-excel", "downloadURL": "https://data.nist.gov/od/ds/mds2-2409/Fleisher_stableQCL_rev1_fig4_data.xls" }, { "title": "SHA256 File for Fig. 4: QCL line width analysis - power spectral densities", "mediaType": "text/plain", "downloadURL": "https://data.nist.gov/od/ds/mds2-2409/Fleisher_stableQCL_rev1_fig4_data.xls.sha256" }, { "title": "Fig. 5: Two-photon absorption spectroscopy of N2O in the mid-infrared", "format": ".csv", "mediaType": "application/vnd.ms-excel", "downloadURL": "https://data.nist.gov/od/ds/mds2-2409/Fleisher_stableQCL_rev1_fig5_data.xls" }, { "title": "SHA256 File for Fig. 5: Two-photon absorption spectroscopy of N2O in the mid-infrared", "mediaType": "text/plain", "downloadURL": "https://data.nist.gov/od/ds/mds2-2409/Fleisher_stableQCL_rev1_fig5_data.xls.sha256" }, { "title": "Read me file", "format": ".txt", "mediaType": "text/plain", "downloadURL": "https://data.nist.gov/od/ds/mds2-2409/readme.txt" }, { "title": "SHA256 File for Read me file", "mediaType": "text/plain", "downloadURL": "https://data.nist.gov/od/ds/mds2-2409/readme.txt.sha256" } ]
identifier	ark:/88434/mds2-2409
issued	2021-05-20
keyword	[ "Environment and Climate", "diode lasers", "greenhouse gases", "laser metrology", "laser stabilization", "marine mammals", "nitrous oxide", "oceans", "optical resonators", "ph", "quantum cascade lasers", "remote sensing", "seabirds", "two-photon absorption" ]
landingPage	https://data.nist.gov/od/id/mds2-2409
language	[ "en" ]
license	https://www.nist.gov/open/license
modified	2021-05-18 00:00:00
programCode	[ "006:045" ]
publisher	{ "name": "National Institute of Standards and Technology", "@type": "org:Organization" }
references	[ "https://doi.org/10.1364/OL.427083" ]
theme	[ "Chemistry:Analytical chemistry", "Environment:Greenhouse gas measurements", "Metrology:Optical, photometry, and laser metrology", "Physics:Spectroscopy" ]
title	Frequency stabilization of a quantum cascade laser by weak resonant feedback from a Fabry-Perot cavity