Yellow light generation by frequency doubling of a diode-pumped Nd:YAG laser |
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Authors: | Fu-qiang Jia Quan Zheng Yi-kun Bu Long-sheng Qian |
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Institution: | a Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Science, Changchun 130031, PR China b Graduated School of Chinese Academy of Science, Beijing 100018, PR China |
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Abstract: | We demonstrate the generation of TEM00 mode yellow light in critically type II phase-matched KTiOPO4 (KTP) with intracavity frequency doubling of a diode-pumped Nd:YAG laser at room temperature. After a 150 μm thick etalon have been inserted into the cavity, the stability and beam quality of the second harmonic generation (SHG) is enhanced. A continuous wave (CW) TEM00 mode output power of 1.67 W at 556 nm is obtained at a pump level of 16 W. The total optical to optical conversion efficiency is about 10.44%. To the best of our knowledge, this is the first Watt-level yellow light generation by frequency doubling of Nd:YAG laser. |
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Keywords: | Nd:YAG DPSSL 556 nm KTP Intracavity frequency doubling |
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