基于非周期极化非线性晶体的高效飞秒光参量振荡器

Efficient femtosecond optical parametric oscillators based on aperiodically poled nonlinear crystals.

作者信息

Artigas David, Reid Derryck T

出版信息

Opt Lett. 2002 May 15;27(10):851-3. doi: 10.1364/ol.27.000851.

DOI:10.1364/ol.27.000851

Abstract

We discuss the use of aperiodically poled nonlinear crystals to improve conversion efficiency in a synchronously pumped ultrafast optical parametric oscillator. We show theoretically that with these crystals the conversion efficiency can be considerably higher than that obtained when a periodically poled crystal with the same length is used. Moreover, we show that pump threshold can be simultaneously improved by use of longer crystals.

摘要

我们讨论了使用非周期极化非线性晶体来提高同步泵浦超快光学参量振荡器中的转换效率。我们从理论上表明，使用这些晶体时，转换效率可比使用相同长度的周期极化晶体时获得的效率高得多。此外，我们还表明，通过使用更长的晶体可以同时提高泵浦阈值。