周期极化铌酸锂光学参量放大器，由光学参量发生器的窄带滤波输出作为种子光。

Periodically poled lithium niobate optical parametric amplifier seeded with the narrow-band filtered output of an optical parametric generator.

作者信息

Powers P E, Aniolek K W, Kulp T J, Richman B A, Bisson S E

出版信息

Opt Lett. 1998 Dec 15;23(24):1886-8. doi: 10.1364/ol.23.001886.

DOI:10.1364/ol.23.001886

PMID:18091944

Abstract

The results of a simple scheme to generate continuously tunable pulsed narrow-bandwidth (less than 0.1 cm (-1)) light in the infrared are presented. A periodically poled lithium niobate (PPLN) optical parametric amplifier is seeded with the filtered output of a PPLN optical parametric generator. A high-finesse Fabry-Perot etalon is used as the filtering element, giving bandwidths as narrow as 0.08 cm (-1) and tunable over 18 cm (-1) without any adjustments to the PPLN crystals. High efficiency is obtained with a 15-ns 1-kHz Nd:YAG laser, giving energies of up to 180 microJ of signal at 1.6 microm and 60 microJ of idler at 3.3 microm .

摘要

本文展示了一种用于在红外波段产生连续可调谐脉冲窄带宽（小于0.1 cm⁻¹）光的简单方案的结果。一个周期性极化铌酸锂（PPLN）光学参量放大器由PPLN光学参量发生器的滤波输出作为种子光。一个高精细度法布里-珀罗标准具用作滤波元件，可实现低至0.08 cm⁻¹的带宽，并可在18 cm⁻¹范围内调谐，且无需对PPLN晶体进行任何调整。使用15 ns、1 kHz的Nd:YAG激光器可实现高效率，在1.6微米处产生高达180微焦的信号能量，在3.3微米处产生60微焦的闲频光能量。