Molecular dispersion spectroscopy based on Fabry-Perot quantum cascade lasers

Lukasz A. Sterczewski; Jonas Westberg; Gerard Wysocki

doi:10.1364/OL.42.000243

Molecular dispersion spectroscopy based on Fabry-Perot quantum cascade lasers

Lukasz A. Sterczewski, Jonas Westberg, Gerard Wysocki

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

15 Scopus citations

Abstract

Two Fabry-Perot quantum cascade lasers are used in a differential dual comb configuration to perform rapidly swept dispersion spectroscopy of low-pressure nitrous oxide with <1 ms acquisition time. Active feedback control of the laser injection current enables simultaneous wavelength modulation of both lasers at kilohertz rates. The system demonstrates similar performance in both absorption and dispersion spectroscopy modes and achieves a noise-equivalent absorption figure of merit in the low 10^-4/√Hz range.

Original language	English (US)
Pages (from-to)	243-246
Number of pages	4
Journal	Optics Letters
Volume	42
Issue number	2
DOIs	https://doi.org/10.1364/OL.42.000243
State	Published - Jan 15 2017

All Science Journal Classification (ASJC) codes

Atomic and Molecular Physics, and Optics

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10.1364/OL.42.000243

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abstract = "Two Fabry-Perot quantum cascade lasers are used in a differential dual comb configuration to perform rapidly swept dispersion spectroscopy of low-pressure nitrous oxide with <1 ms acquisition time. Active feedback control of the laser injection current enables simultaneous wavelength modulation of both lasers at kilohertz rates. The system demonstrates similar performance in both absorption and dispersion spectroscopy modes and achieves a noise-equivalent absorption figure of merit in the low 10-4/√Hz range.",

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AU - Wysocki, Gerard

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Molecular dispersion spectroscopy based on Fabry-Perot quantum cascade lasers

Abstract

All Science Journal Classification (ASJC) codes

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