9 September 1999 Long-wavelength high-power quantum fountain unipolar lasers in GaAs/AlGaAs quantum wells
Author Affiliations +
Proceedings Volume 3828, Terahertz Spectroscopy and Applications II; (1999) https://doi.org/10.1117/12.361027
Event: Industrial Lasers and Inspection (EUROPTO Series), 1999, Munich, Germany
High-power unipolar GaAs/AlGaAs lasers emitting in the 14-15 micrometers wavelength range under optical pumping by a pulsed CO2 laser are investigated. Operation of edge lasers with side-facet pumping gas well as broad-area lasers with normal-incidence pumping is demonstrated. We show that record high optical powers can be obtained from these quantum fountain unipolar lasers. Optical powers per facet as high as 6.6 W for edge lasers and 7.8 W for broad-area lasers are achieved with TM00 mode emission. Extended tunability of the lasing wavelength, (Delta) (lambda) /(lambda) approximately equals 2.5 percent, is observed by varying the pump wavelength. Operating temperatures as high as 137 K are presently achieved. Application of quantum fountain unipolar lasers to CO2 gas detection is demonstrated.
© (1999) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Olivier Gauthier-Lafaye, Olivier Gauthier-Lafaye, Bruno Seguin-Roa, Bruno Seguin-Roa, Francois H. Julien, Francois H. Julien, Gottfried Strasser, Gottfried Strasser, Philippe Collot, Philippe Collot, Carlo Sirtori, Carlo Sirtori, Jean-Yves Duboz, Jean-Yves Duboz, } "Long-wavelength high-power quantum fountain unipolar lasers in GaAs/AlGaAs quantum wells", Proc. SPIE 3828, Terahertz Spectroscopy and Applications II, (9 September 1999); doi: 10.1117/12.361027; https://doi.org/10.1117/12.361027

Back to Top