Title :
Investigation of widely tuneable laser diodes for spectroscopic based multigas sensing at 1.5 μm
Author :
Phelan, R. ; Lynch, M. ; Donegan, J.F. ; Weldon, V.
Author_Institution :
Phys. Dept., Trinity Coll., Dublin, Ireland
Abstract :
Widely tuneable laser diodes, with wavelength tuning ranges of 34 nm and 15 nm are used for simultaneous multigas sensing. We assess their perfomance for gases such as hydrogen sulphide, acetylene, and carbon dioxide.
Keywords :
carbon compounds; chemical variables measurement; gas sensors; hydrogen compounds; infrared spectroscopy; laser tuning; measurement by laser beam; organic compounds; semiconductor lasers; spectrochemical analysis; 1.5 micron; CO2; H2S; acetylene; carbon dioxide; hydrogen sulphide; spectroscopic based multigas sensing; wavelength tuning ranges; widely tuneable laser diodes; Absorption; Diode lasers; Distributed feedback devices; Frequency; Gases; Laser tuning; Quantum cascade lasers; Spectroscopy; Tunable circuits and devices; Wavelength measurement;
Conference_Titel :
Lasers and Electro-Optics Europe, 2003. CLEO/Europe. 2003 Conference on
Print_ISBN :
0-7803-7734-6
DOI :
10.1109/CLEOE.2003.1313565