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

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

doi:10.1038/s41598-021-84721-9

Scientific Reports (Mar 2021)

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

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

Affiliations

Ke Wang: 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
Mingyao Gao: 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
Shuhui Yu: Nanjing Star-Shining Technology Company Limited
Jian Ning: Nanjing Star-Shining Technology Company Limited
Zhenda Xie: 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
Xinjie Lv: 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
Gang Zhao: 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
Shining Zhu: 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

DOI: https://doi.org/10.1038/s41598-021-84721-9
Journal volume & issue: Vol. 11, no. 1
pp. 1 – 8

Abstract

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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:YVO4 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 mm3 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.

Published in Scientific Reports

ISSN: 2045-2322 (Online)
Publisher: Nature Portfolio
Country of publisher: United Kingdom
LCC subjects: Medicine; Science
Website: https://www.nature.com/srep/

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