| Autor: |
Christoph Eichler, Sven Gerhard, Muhammad Ali, Soenke Tautz, André Somers, Uwe Strauss, Harald Koenig, Bernhard Stojetz, Matthias Peter, Alfred Lell, Andreas Loeffler, Georg Bruederl, Urs Heine |
| Rok vydání: |
2017 |
| Předmět: |
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| Zdroj: |
2017 IEEE High Power Diode Lasers and Systems Conference (HPD). |
| Popis: |
We present the improvements in power conversion efficiency of high power multi-mode blue laser diodes. The improved device architecture shows a peak wall plug efficiency of ∼ 44.2 % at room temperature. Furthermore, the device delivers an optical output power reaching 3.7 W at the peak efficiency. The signs of thermal roll-over at room temperature start appearing near 5 A of injection current for this particular device design. The device generates an optical output power of more than 7.5 W with overstressed current injection at room temperature. We have also evaluated the high temperature electro-optical performance. The roll-over point is shifted by approximately 1 A when the device is operating at 85°C. The optical output power reaches 4.8 W at thermal roll-over. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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