窄带周期极化铌酸锂非共振光参量振荡器。

Narrow-band periodically poled lithium niobate nonresonant optical parametric oscillator.

出版信息

Opt Lett. 2019 Dec 1;44(23):5659-5662. doi: 10.1364/OL.44.005659.

DOI:10.1364/OL.44.005659

Abstract

We report on a narrowband, nonresonant periodically poled lithium niobate (PPLN) optical parametric oscillator using a volume Bragg grating (VBG) as the spectral narrowing element. Pumping by a Nd:YVO laser at 1.06 μm, a maximum output power of 4.75 W is achieved at a repetition rate of 20 kHz for a conversion efficiency of 47.5%. Both signal and idler spectra are narrowed to less than 2 nm, at good beam quality and stability.

摘要

我们报告了一种窄带、非共振周期性极化铌酸锂（PPLN）光参量振荡器，使用体积布拉格光栅（VBG）作为光谱窄化元件。在 1.06μm 的 Nd:YVO 激光泵浦下，在 20kHz 的重复率下实现了最大 4.75W 的输出功率，转换效率为 47.5%。信号和闲频光谱都被窄化到小于 2nm，光束质量和稳定性良好。