Patent 7764379 was granted and assigned to AXSUN Technologies on July, 2010 by the United States Patent and Trademark Office.
A system of gas property monitoring comprises a gas cell for containing a gas of interest and a semiconductor tunable laser spectroscopy system for generating a tunable signal that is transmitted through the gas of interest in the gas cell and detecting the tunable signal after transmission through the gas of interest. An analyzer is provided for relating a spectral response of the gas of interest to a property of interest, such as an energy content of the gas of interest.