Cathodoluminescence spectral imaging as a technique for the study of cavity degradation of high-power QW lasers
| Autor: | G. Hallais, Manuel Avella, J. Jiménez, V. Lemonon, M. Pommiès, M. Bettiati |
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| Rok vydání: | 2006 |
| Předmět: |
medicine.medical_specialty
Materials science business.industry Mechanical Engineering Cathodoluminescence Condensed Matter Physics Laser law.invention Spectral imaging Power (physics) Optics Mechanics of Materials law medicine Optoelectronics General Materials Science business Luminescence Spectrum imaging Laser beams Degradation (telecommunications) |
| Zdroj: | Materials Science in Semiconductor Processing. 9:204-209 |
| ISSN: | 1369-8001 |
| DOI: | 10.1016/j.mssp.2006.01.061 |
| Popis: | Laser degradation is usually reported to occur on the facet mirrors; however, inner cavity degradation also occurs. To improve the understanding of the degradation mechanisms local spectroscopic techniques are necessary. Spectrum imaging cathodoluminescence appears as a powerful tool to study the materials changes induced by the laser degradation. Spectrum imaging allows to map the distribution of the different spectral parameters of the QW luminescence. The application of this experimental method to the study of cavity degradation in InGaAs/GaAs 980 nm pump lasers is discussed. According to the results obtained one can establish a story of the laser degradation. |
| Databáze: | OpenAIRE |
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