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Open-path CO2 measurement in indoor and outdoor environments in the Ahmedabad-Gandhinagar area using a 2004 nm tunable VCSEL

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Abstract

We report the first calibration-free measurements of atmospheric CO2 in the Ahmedabad-Gandhinagar area using a portable tunable diode laser spectroscopy system. Second harmonic wavelength modulation spectroscopy is implemented on a 1 mW, 2004 nm VCSEL.

© 2016 Optical Society of America

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