Abstract

The effect of the refractive index n_D and mean dispersion (n_F – n_C) on the nonlinear refractive index of laser and optical glasses for active elements and elements of white optics of high-power pulsed radiation amplifiers is studied. It is shown that the nonlinear refractive index of the studied glasses will not exceed the maximum allowable value of 1.20 × 10^–13 cm²/B² if their refractive index in the green (yellow) region of the spectrum is below 1.550, and the average dispersion is less than 0.00820. It is found that the nonlinear refractive index of the studied glasses depends almost linearly on both the refractive index and the average dispersion. It is proposed that athermal phosphate crowns with a nonlinear refractive index below the specified limiting value can serve as the base for obtaining neodymium glasses with a low nonlinear index.

中文翻译：

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激光和光学玻璃的非线性折射率对其光学常数的依赖性

摘要

研究了折射率n _D和平均色散 ( n _F – n _{C ) 对用于高功率脉冲辐射放大器的有源元件和白光光学元件的激光和光学玻璃非线性折射率的影响。}结果表明，所研究玻璃的非线性折射率不会超过最大允许值1.20×10 ^–13 cm ² /B ²如果它们在光谱的绿色（黄色）区域的折射率低于 1.550，并且平均色散小于 0.00820。研究发现，所研究的玻璃的非线性折射率几乎线性地取决于折射率和平均色散。提出非线性折射率低于规定极限值的无热磷酸盐冠可以作为获得低非线性折射率的钕玻璃的基础。