Title :
Detection of methane at 1650nm and carbon dioxide at 2004nm using tunable diode laser spectroscopy
Author :
Upadhyay, Ankit ; Chakraborty, Arup Lal
Author_Institution :
Dept. of Electr. Eng., Indian Inst. of Technol. Gandhinagar, Ahmedabad, India
Abstract :
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.
Keywords :
carbon compounds; chemical variables measurement; distributed feedback lasers; gas sensors; laser cavity resonators; measurement by laser beam; modulation spectroscopy; optical modulation; optical sensors; organic compounds; semiconductor lasers; surface emitting lasers; CO2; VCSEL; absorption line shape; carbon dioxide detection; edge-emitting laser; methane detection; tunable diode laser spectroscopy; wavelength 1650 nm; wavelength 2004 nm; wavelength modulation spectroscopy;
Conference_Titel :
Fiber Optics and Photonics (PHOTONICS), 2012 International Conference on
Conference_Location :
Chennai
Print_ISBN :
978-1-4673-4718-1
