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篇目详细内容 |
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【篇名】 |
The thermal effect analysis in the high power frequency-doubled Nd:YAG Laser |
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【刊名】 |
Frontiers of Physics in China |
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【刊名缩写】 |
Front. Phys. China |
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【ISSN】 |
1673-3487 |
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【EISSN】 |
1673-3606 |
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【DOI】 |
10.1007/s11467-006-0011-2 |
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【出版社】 |
Higher Education Press and Springer-Verlag |
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【出版年】 |
2006 |
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【卷期】 |
1
卷2期 |
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【页码】 |
225-229
页,共
5
页 |
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【作者】 |
YAO Jian-quan;
XU De-gang;
WANG Yu-ye;
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【关键词】 |
high power; frequency doubled crystal; thermal effect; phase matched; tolerance angles; walk-off angles |
【摘要】 |
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In the high power frequency-doubled Nd:YAG Laser, the temperature inside a nonlinear crystal will become non-uniform due to the absorbtion of the fundamental and second harmonic waves, leading to phase mismatch, conversion efficiency reduction and output power instability. This phenomenon appears severe in the high-power high-repetition rate laser system. In this paper, temperature distribution inside a KTP crystal was analyzed by solving the thermal conductivity equation. According to the temperature distribution of the KTP, we have theoretically calculated the optimal phase matching angles, tolerance angles and walk-off angles of type II KTP crystal as a function of temperature. |
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