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首页> 外文期刊>Optics Communications: A Journal Devoted to the Rapid Publication of Short Contributions in the Field of Optics and Interaction of Light with Matter >Electro-optically, widely tunable optical parametric oscillator based on periodically poled lithium niobate
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Electro-optically, widely tunable optical parametric oscillator based on periodically poled lithium niobate

机译：基于周期性抛光锂铌酸盐的电光，广泛可调光学参数振荡器

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摘要

We report fast and wide wavelength tuning of a ns-optical parametric oscillator (OPO) based on a periodically poled lithium niobate crystal (PPLN) with a three-segment structure. An ultra-broad parametric gain was accomplished by appropriately choosing the pump wavelength and the poling period for group velocity matching between the signal and the idler. While the first segment of the PPLN generated ultra-broad signal and idler bands, the third segment amplified selected portions of the spectra, which could be controlled electro-optically by applying a dc electric field in the middle single-domain segment. A ns-laser pumped singly resonant OPO was built, whose signal wavelength was tuned from 1.373 to 1.749 mu m (corresponding idler tuning range from 2.863 to 1.972 mu m) by varying the electric field from -6.5 to +5.0 kV/mm. The electro-optic tuning provided a fast wavelength selection method for the OPO within the wide infrared spectral range.
机译：我们基于具有三段结构的周期性抛光的锂铌酸锂晶体（PPLN）来报告NS-光学参数振荡器（OPO）的快速和宽波长调整。 通过适当地选择信号和惰轮之间的组速度匹配的泵波长和极化时段来实现超宽的参数增益。 虽然PPLN的第一段产生超宽信号和惰轮，但是通过在中间单域段中应用DC电场，可以通过施加DC电场来电光学地控制光谱的第三段扩增的选定部分。 建立了NS-Laser Soldlated Solonent OPO，其信号波长通过从-6.5至+5.0kV / mm的电场改变电场，从1.373到1.749 mu m（相应的惰轮调谐范围为2.863到1.972 mu m）。 电光调谐为宽红外光谱范围内的OPO提供了快速波长选择方法。

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