Title :
Semiconductor mid-infrared lasers working at high temperature application to gas analysis
Author :
Rouillard, Y. ; Baranov, A.N. ; Yarekha, D.A. ; Perona, A. ; Vicet, A. ; Joullie, A. ; Alibert, C.
Author_Institution :
Centre d´´Electron. et de Microoptoelectron., Univ. des Sci. et Tech. du Languedoc, Montpellier, France
Abstract :
There is a need for low-cost and portable equipment. The exigency in terms of the sensitivity lies around the 1 ppm level. Tunable diode laser spectroscopy (TDLAS) appears to be the best candidate to fulfill these requirements. To be performed in good conditions TDLAS needs the laser to be operated in continuous mode. Unfortunately there is presently no semiconductor laser able to operate in cw mode beyond 2.7 μm at room temperature. We try to overcome this problem
Keywords :
infrared spectroscopy; laser tuning; measurement by laser beam; measurement errors; semiconductor lasers; spectrochemical analysis; 2 to 3 mum; IR spectroscopy; continuous mode; cw mode; gas analysis; high temperature; low-cost; portable equipment; room temperature; semiconductor laser; semiconductor mid-infrared lasers; sensitivity; spectrochemical analysis; tunable diode laser spectroscopy; Atmosphere; Diode lasers; Gas lasers; Gases; Infrared spectra; Laser modes; Pollution measurement; Semiconductor lasers; Temperature distribution; Threshold current;
Conference_Titel :
Laser and Fiber-Optical Networks Modeling, 2000. Proceedings of LFNM 2000. 2nd International Workshop on
Conference_Location :
Kharkiv
Print_ISBN :
0-7803-6380-9
DOI :
10.1109/LFNM.2000.854026
