Title :
Multiwavelength gas sensing by rapidly-swept, continuous-wave cavity ringdown spectroscopy
Author :
Englich, Florian V. ; He, Yabai ; Shorten, Richard A. ; Orr, Brian J.
Author_Institution :
Centre for Lasers & Applications, Macquarie Univ., Sydney, NSW, Australia
Abstract :
In this paper, we report the use of communication-band tunable diode laser for simultaneous detection of carbon monoxide (CO) and carbon dioxide (CO2) in air, using multiwavelength optical-heterodyne-detected continuous-wave cavity ringdown absorption spectroscopy with a rapidly swept cavity.
Keywords :
air pollution measurement; atmospheric composition; carbon compounds; chemical variables measurement; gas sensors; heterodyne detection; infrared spectroscopy; laser cavity resonators; laser tuning; measurement by laser beam; semiconductor lasers; spectrochemical analysis; CO; CO2; air; carbon dioxide detection; carbon monoxide detection; communication-band tunable diode laser; multiwavelength gas sensing; optical-heterodyne-detected continuous-wave cavity ringdown spectroscopy; rapidly-swept cavity; Absorption; Combustion; Diode lasers; Gas detectors; Gas industry; Helium; Optical mixing; Optical sensors; Patient monitoring; Spectroscopy;
Conference_Titel :
Lasers and Electro-Optics Europe, 2003. CLEO/Europe. 2003 Conference on
Print_ISBN :
0-7803-7734-6
DOI :
10.1109/CLEOE.2003.1313546
