| Autor: |
Irving Chyr, Robert Bullock, Terry Towe, James Harrison, Darning Liu, Touyen Nguyen, Ed Wolak, Xu Jin, Hanxuan Li, Tom Truchan, Jeff Mott, Robert L. Miller, Trevor Crum, Oscar Romero, Denny Brown |
| Rok vydání: |
2009 |
| Předmět: |
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| Zdroj: |
SPIE Proceedings. |
| ISSN: |
0277-786X |
| DOI: |
10.1117/12.809694 |
| Popis: |
New-generation multi-mode 9xx mini-bars used in fiber pump modules have been developed. The epitaxial designs have been improved for lower fast-axis and slow-axis divergence, higher slope efficiency and PCE by optimizing layer structures as well as minimizing internal loss. For 915nm mini-bars with 5-mm cavity length, maximum PCE is as high as ~61% for 35W operation and remains above 59% at 45W. For 808nm, a PCE of 56% at 135W CW operation has been demonstrated with 36%-fill-factor, 3-mm-cavity-length, water-cooled bars at 50°C coolant temperature. On passive-cooled standard CS heatsinks, PCE of >51% is measured for 100W operation at 50°C heatsink temperature. Leveraging these improvements has enabled low-cost bars for high-power, high-temperature applications. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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