掺杂比对CdGe(As11-xPx)2倍频与参量振荡的影响
Influence of composition ratio on second harmonic generation and optical parametric oscillation of CdGe(As1-xPx)2
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摘要: 在相位匹配和可接受掺杂比理论的基础上，针对CdGe((As11-xPx)2晶体，研究了掺杂比对频率转换的影响。依据Sellmeier方程得到了倍频和Ho3+:YLF与Cr:Er:YSGG激光器泵浦光学参量振荡的相位匹配调谐曲线，并给出了不同掺杂下的可接受掺杂比。结果表明：掺杂晶体可实现2~9 μm范围内非临界相位匹配的倍频和2~18 μm的参量光产生；随着掺杂比的增大，可接受掺杂比近似线性减小，并随着波长改变展现出了不同变化趋势。
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关键词:
- 非线性光学 /
- 可接受掺杂比 /
- CdGe(As11-xPx)2晶体 /
- 相位匹配 /
- 光参量振荡
Abstract: Based on the theories of phase matching and acceptable composition ratio, the influence of composition ratio on the frequency conversions of CdGe(As1-xPx)2 was investigated. In consideration of Sellmeier equations, phase matching diagrams of second harmonic generation and optical parametric oscillations pumped by the popular Ho3+:YLF and Cr:Er:YSGG lasers were calculated, as well as acceptable composition ratios with various compositions. It is shown that the second harmonic generation of noncritical phase matching can be realized in 2~9 μm and parametric light in 2~18 μm can be generated by optical parametric oscillations. Acceptable composition ratios decrease approximately linearly with composition ratio, and show different tendencies with changing wavelengths. -
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