Title :
A compact CW-THz spectrometer for applications to gas phase identification and quantification of multiple species
Author :
Hindle, Francis ; Yang, Chun ; Cuisset, Arnaud ; Bocquet, Robin ; Mouret, Gael
Author_Institution :
Lab. de Physico-Chimie de I´Atmos., Univ. du Littoral Cote d´Opale, Dunkerque
Abstract :
A CW-THz spectrometer using photomixing has been constructed using two external cavity diode lasers and a tapered semiconductor optical amplifier. One diode laser is stabilized to atomic transition of Rubidium and the second is stabilized with a terahertz beatnote separation by means of a low contrast Fabry-Perot interferometer. The line intensity and self broadening coefficient of carbonyl sulphide was determined to validate the spectrometer performance.
Keywords :
Fabry-Perot interferometers; rubidium; semiconductor lasers; submillimetre wave spectroscopy; Fabry-Perot interferometer; carbonyl sulphide; cavity diode laser; compact CW-THz spectrometer; gas phase identification; photomixing; rubidium; tapered semiconductor optical amplifier; Diode lasers; Frequency; Gas lasers; Laser stability; Millimeter wave measurements; Optical collimators; Optical mixing; Pollution measurement; Semiconductor optical amplifiers; Spectroscopy; millimeter wave frequency conversion; millimeter wave spectroscopy; semiconductor lasers;
Conference_Titel :
Infrared and Millimeter Waves, 2007 and the 2007 15th International Conference on Terahertz Electronics. IRMMW-THz. Joint 32nd International Conference on
Conference_Location :
Cardiff
Print_ISBN :
978-1-4244-1438-3
DOI :
10.1109/ICIMW.2007.4516472
