Nanosecond periodically poled lithium niobate optical parametric generator pumped at 532 nm by a single-frequency passively Q-switched Nd:YAG laser |
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| Authors: | Bäder U Meyn J P Bartschke J Weber T Borsutzky A Wallenstein R Batchko R G Fejer M M Byer R L |
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| Institution: | Fachbereich Physik, Universit?t Kaiserslautern, Erwin-Schr?dinger-Strasse 46, D-67663 Kaiserlautern, Germany. |
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| Abstract: | We report an efficient, visible, nanosecond optical parametric generator of periodically poled lithium niobate pumped at 532 nm by a frequency-doubled, diode-pumped, passively Q -switched, single-mode Nd:YAG laser with 90-muJ pulse energy. The signal radiation is tunable from 637 to 593 nm. The maximum signal-conversion efficiency is 23%. Optical parametric amplification of a He-Ne laser at 632.8 nm is also studied. |
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