High-power VCSELs with a rectangular aperture
| Autor: | Johanna Kolb, M. Strösser, Michael Miller, Peter Loosen, Pavel Pekarski, Stephan Gronenborn, Jens Pollmann-Retsch, Holger Mönch |
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| Rok vydání: | 2011 |
| Předmět: |
Quantum optics
Materials science Physics and Astronomy (miscellaneous) Rectangular aperture business.industry Thermal resistance General Engineering Physics::Optics General Physics and Astronomy Nonlinear Sciences::Adaptation and Self-Organizing Systems Optics Quadratic equation Homogeneity (physics) Optoelectronics business Quantum well |
| Zdroj: | Applied Physics B. 105:783-792 |
| ISSN: | 1432-0649 0946-2171 |
| DOI: | 10.1007/s00340-011-4593-1 |
| Popis: | We show how VCSELs with elongated shapes of the emission area can achieve higher output powers and wall-plug efficiency compared to standard circular or quadratic VCSELs. We identified an improved homogeneity of the carrier concentration in the quantum wells as well as a reduced thermal resistance as the main reasons for the better performance of the rectangular shaped VCSELs presented in this article. |
| Databáze: | OpenAIRE |
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