Efficient pumping scheme for neodymium-doped materials by direct excitation of the upper lasing level
| Autor: | Eyal Lebiush, Steven Jackel, Idan Paiss, Mordechai Katz, Raphael Lavi, Yitshak Tzuk, Michael Winik |
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| Rok vydání: | 2008 |
| Předmět: |
Materials science
business.industry Materials Science (miscellaneous) Slope efficiency chemistry.chemical_element Laser Neodymium Industrial and Manufacturing Engineering Semiconductor laser theory law.invention Optics chemistry law Fiber laser Sapphire Optoelectronics Business and International Management business Lasing threshold Excitation |
| Zdroj: | Applied optics. 38(36) |
| ISSN: | 1559-128X |
| Popis: | An efficient pumping scheme that involves direct excitation of the upper lasing level of the Nd(3+) ion is demonstrated experimentally. The results obtained for direct upper laser level pumping of Nd:YAG R2 (869 nm) and Nd:YVO(4) (880 nm) were compared with traditional approximately 808-nm pump band excitation. A tunable cw Ti:sapphire laser was used as the pump source. In Nd:YAG, the oscillator slope efficiency increased by 10% and the threshold decreased by 11%. In Nd:YVO(4), the slope efficiency increased by 5% and the threshold decreased by 11%. These results agree with theory. The increase in optical efficiency indicates that laser material thermal loading can be substantially reduced. |
| Databáze: | OpenAIRE |
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