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

Jonas K. Valiunas, George Stewart, Gautam Das

Research output: Contribution to journalArticle

3 Citations (Scopus)
72 Downloads (Pure)

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 languageEnglish
Pages (from-to)359-362
Number of pages4
JournalIEEE Photonics Technology Letters
Volume28
Issue number3
Early online date30 Oct 2015
DOIs
Publication statusPublished - 1 Feb 2016

Fingerprint

nitrous oxides
Nitrous Oxide
Absorption spectroscopy
absorption spectroscopy
Oxides
Lasers
lasers
Saturable absorbers
Spontaneous emission
greenhouses
Laser modes
Greenhouse gases
spontaneous emission
absorbers
oscillations
cavities
thresholds
sensitivity
cells
gases

Keywords

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

Cite this

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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.",
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Detection of nitrous oxide (N2O) at sub-ppmv using intracavity absorption spectroscopy. / Valiunas, Jonas K.; Stewart, George; Das, Gautam.

In: IEEE Photonics Technology Letters, Vol. 28, No. 3, 01.02.2016, p. 359-362.

Research output: Contribution to journalArticle

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AU - Valiunas, Jonas K.

AU - Stewart, George

AU - Das, Gautam

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