Recovery of the absolute absorption line shape is demonstrated for methane with a 1650nm edge-emitting laser and for carbon dioxide with a 2004nm VCSEL. The potential for direct detection and wavelength modulation spectroscopy are explored.
© 2012 OSA
(120.0280) Instrumentation, measurement, and metrology : Remote sensing and sensors
(300.6260) Spectroscopy : Spectroscopy, diode lasers
(280.4788) Remote sensing and sensors : Optical sensing and sensors
A. Upadhyay and A. L. Chakraborty, "Detection of methane at 1650nm and carbon dioxide at 2004nm using tunable diode laser spectroscopy," in International Conference on Fibre Optics and Photonics, OSA Technical Digest (online) (Optical Society of America, 2012), paper T2B.2.
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