Progress in joule-class diode laser bars and high brightness modules for application in long-pulse pumping of solid state amplifiers
| Autor: | R. Bödefeld, J. Neukum, M. M. Karow, Paul Crump, W. Fassbender, Andre Maaßdorf, J. Lotz, Günther Tränkle, Joachim Hein, S. Knigge, Jörg Körner |
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| Rok vydání: | 2017 |
| Předmět: |
Materials science
Passivation Bar (music) business.industry Amplifier Joule 02 engineering and technology Laser 01 natural sciences law.invention Semiconductor laser theory 010309 optics Resonator 020210 optoelectronics & photonics law 0103 physical sciences 0202 electrical engineering electronic engineering information engineering Optoelectronics business Diode |
| Zdroj: | High-Power Diode Laser Technology XV. |
| ISSN: | 0277-786X |
| DOI: | 10.1117/12.2252246 |
| Popis: | Progress in the development of highly brilliant pump modules based on novel high-energy-class diode laser bars is presented, targeting long-pulse (2 ms) application in pumping Yb:CaF2 amplifier crystals. Bars with long resonators and high fill factors are used for low resistance and efficient cooling. Advanced extreme-double asymmetric epitaxial structures are used for high efficiency at high power. Facet passivation is used for long life at high powers, enabling operation at 600 W per bar (1.2 J). Performance of bars and passively cooled stacks is summarized and prospects for further performance enhancements are reviewed. |
| Databáze: | OpenAIRE |
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