一种基于周期性极化铌酸锂的紧凑高效腔内光学参量振荡器。

A compact and high efficiency intracavity OPO based on periodically poled lithium niobate.

作者信息

Wang Ke, Gao Mingyao, Yu Shuhui, Ning Jian, Xie Zhenda, Lv Xinjie, Zhao Gang, Zhu Shining

机构信息

National Laboratory of Solid State Microstructures, School of Physics, School of Electronic Science and Engineering, College of Engineering and Applied Science, and Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing, 210093, China.

Nanjing Star-Shining Technology Company Limited, Nanjing, 210043, China.

出版信息

Sci Rep. 2021 Mar 3;11(1):5079. doi: 10.1038/s41598-021-84721-9.

DOI:10.1038/s41598-021-84721-9

PMID:33658598

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC7930186/

Abstract

We demonstrate a compact, high efficiency and widely tunable intracavity singly resonant optical parametric oscillator (IC-OPO) based on multichannel periodically poled lithium niobate (PPLN). The IC-OPO is composed of 808 nm pump laser diode (LD), Nd:YVO laser and linear OPO. The continuous-wave (CW) mid-infrared (MIR) output laser is tunable from 2.25 to 4.79 μm. The maximum output power exceeds 1.08 W at 3.189 μm at 9.1 W LD pump power and the conversion efficiency is 11.88%. We also build up a prototype with volume of 145 × 85 × 42.5 mm and its total weight is less than 2 kg. The measured power stability is 1.3% Root Meat Square (RMS) for a 3 h duration under simulated high temperature conditions of 40 °C. RMS is 2.6% for a 4 h duration when simulated temperature is - 40 °C.

摘要

我们展示了一种基于多通道周期性极化铌酸锂（PPLN）的紧凑、高效且广泛可调谐的腔内单共振光学参量振荡器（IC - OPO）。该IC - OPO由808 nm泵浦激光二极管（LD）、Nd:YVO激光器和线性OPO组成。连续波（CW）中红外（MIR）输出激光的波长可在2.25至4.79μm范围内调谐。在9.1 W的LD泵浦功率下，3.189μm处的最大输出功率超过1.08 W，转换效率为11.88%。我们还制作了一个体积为145×85×42.5 mm的原型，其总重量小于2 kg。在40°C的模拟高温条件下持续3小时，测得的功率稳定性为均方根（RMS）1.3%。当模拟温度为 - 40°C时，持续4小时的RMS为2.6%。