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Stimulated emission and optical gain in CdTe/CdMnTe graded index separate confinement heterostructures |
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| Authors: | R. Legras Le Si Dang C. Bodln J. Cibért F. Marcenat G. Feuillet J. L. Paútrat D. Hervé E. Molva |
| Affiliation: | (1) Laboratoire de Spectrométrie Physique (URA 08, CNRS), Université Joseph Fourier, B.P. 87-38402, Saint Martin d’Hères Cedex, France;(2) CEA-Département de Recherche Fondamentale sur la Matière Condensée, CENG SP2M/PSC, 85X-38041 Grenoble, France;(3) CENG, LETI (CEA-Technologies Avancées), 85X-38041 Grenoble, France |
| Abstract: | Stimulated emission and optical gain in CdTe/CdMnTe graded index separate confinement quantum wells have been investigated as a function of optical excitation powers and temperatures. Maximum gain of about 100 cm-1 is obtained at 95K for a single quantum well under 2-3 kW/cm2 excitation. This value allows to design laser cavities compatible with the microgun pumped laser device concept. The temperature dependence of the gain still remains a problem (T0 = 110K). |
| Keywords: | CdTe-CdMnTe heterostructures Molecular beam epitaxy Optical gain Stimulated emission Visible laser |
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