Detection of nitrous oxide (N2O) at sub-ppmv using intracavity absorption spectroscopy

Jonas K. Valiunas; George Stewart; Gautam Das

doi:10.1109/LPT.2015.2496250

Detection of nitrous oxide (N₂O) at sub-ppmv using intracavity absorption spectroscopy

Jonas K. Valiunas, George Stewart, Gautam Das

Electronic And Electrical Engineering

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Abstract

We demonstrate a ﬁber laser system for the detection of the greenhouse gas, nitrous oxide (N₂O), at sub-ppmv concentration levels. The ﬁber laser is stabilized by a saturable absorber. The sensitivity is enhanced by multiple circulations of ampliﬁed spontaneous emission light under threshold conditions, and multi-longitudinal mode oscillation of the laser. An intra-cavity Herriott cell of an effective path length of 30 m was used to detect the P (12) rotational line of N₂O at ∼1522.20 nm.

Original language	English
Pages (from-to)	359-362
Number of pages	4
Journal	IEEE Photonics Technology Letters
Volume	28
Issue number	3
Early online date	30 Oct 2015
DOIs	https://doi.org/10.1109/LPT.2015.2496250
Publication status	Published - 1 Feb 2016

Keywords

laser spectroscopy
intracavity spectroscopy
absorption
cavity resonators
optical fibers
optical attenuators
fiber gratings

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10.1109/LPT.2015.2496250

Valiunas-etal-PTL-2016-Detection-of-nitrous-oxide-at-sub-ppmvAccepted author manuscript, 674 KB

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title = "Detection of nitrous oxide (N2O) at sub-ppmv using intracavity absorption spectroscopy",

abstract = "We demonstrate a ﬁber laser system for the detection of the greenhouse gas, nitrous oxide (N2O), at sub-ppmv concentration levels. The ﬁber laser is stabilized by a saturable absorber. The sensitivity is enhanced by multiple circulations of ampliﬁed spontaneous emission light under threshold conditions, and multi-longitudinal mode oscillation of the laser. An intra-cavity Herriott cell of an effective path length of 30 m was used to detect the P (12) rotational line of N2O at ∼1522.20 nm.",

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AU - Valiunas, Jonas K.

AU - Stewart, George

AU - Das, Gautam

N1 - © 2016 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.

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N2 - We demonstrate a ﬁber laser system for the detection of the greenhouse gas, nitrous oxide (N2O), at sub-ppmv concentration levels. The ﬁber laser is stabilized by a saturable absorber. The sensitivity is enhanced by multiple circulations of ampliﬁed spontaneous emission light under threshold conditions, and multi-longitudinal mode oscillation of the laser. An intra-cavity Herriott cell of an effective path length of 30 m was used to detect the P (12) rotational line of N2O at ∼1522.20 nm.

AB - We demonstrate a ﬁber laser system for the detection of the greenhouse gas, nitrous oxide (N2O), at sub-ppmv concentration levels. The ﬁber laser is stabilized by a saturable absorber. The sensitivity is enhanced by multiple circulations of ampliﬁed spontaneous emission light under threshold conditions, and multi-longitudinal mode oscillation of the laser. An intra-cavity Herriott cell of an effective path length of 30 m was used to detect the P (12) rotational line of N2O at ∼1522.20 nm.

KW - laser spectroscopy

KW - intracavity spectroscopy

KW - absorption

KW - cavity resonators

KW - optical fibers

KW - optical attenuators

KW - fiber gratings

UR - http://ieeexplore.ieee.org/xpl/RecentIssue.jsp?punumber=68

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DO - 10.1109/LPT.2015.2496250

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EP - 362

JO - IEEE Photonics Technology Letters

JF - IEEE Photonics Technology Letters

IS - 3

ER -

Detection of nitrous oxide (N₂O) at sub-ppmv using intracavity absorption spectroscopy

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Keywords

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