250 W end-pumped Nd:YAG laser with direct pumping into the upper laser level |
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Authors: | Frede Maik Wilhelm Ralf Kracht Dietmar |
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Institution: | Laser Zentrum Hannover e.V., Hannover, Germany. mf@lzh.de |
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Abstract: | A high-power longitudinally pumped Nd:YAG laser using direct pumping into the upper laser level is demonstrated. With an absorbed pump power of 438 W an output power of 250 W was realized, which results in an optical-to-optical efficiency of 57%. To the best of our knowledge, this is the first demonstration of a high-output power 885 nm pumped laser design. |
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