Open-path sensor for atmospheric methane based on chirped laser dispersion spectroscopy

The design and characterization of a near-IR Chirped Laser Dispersion Spectroscopy (CLaDS) sensor for atmospheric methane detection are reported. The near-IR CLaDS system exhibits the benefits of the prior mid-IR CLaDS systems implemented for open-path sensing while taking advantage of the robust fi...

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Bibliographic Details
Published inApplied physics. B, Lasers and optics Vol. 119; no. 1; pp. 3 - 9
Main Authors Nikodem, Michal, Plant, Genevieve, Sonnenfroh, David, Wysocki, Gerard
Format Journal Article
LanguageEnglish
Published Berlin/Heidelberg Springer Berlin Heidelberg 01.04.2015
Subjects
Cladding
Dispersions
Engineering
Fiber optics
Lasers
Methane
Optical Devices
Optical fibers
Optics
Photonics
Physical Chemistry
Physics
Physics and Astronomy
Quantum Optics
Sensors
Spectroscopy
Allan Deviation
Longe Average Time
High Concentration Methane
Optical Power
Minimum Detection Limit
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Summary:The design and characterization of a near-IR Chirped Laser Dispersion Spectroscopy (CLaDS) sensor for atmospheric methane detection are reported. The near-IR CLaDS system exhibits the benefits of the prior mid-IR CLaDS systems implemented for open-path sensing while taking advantage of the robust fiber-optic components available in the near-IR. System noise, long-term stability, and comparison with existing technology for methane detection are presented.
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ISSN:0946-2171
1432-0649
DOI:10.1007/s00340-014-5938-3