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Appl. Sci. 2018, 8(8), 1345; https://doi.org/10.3390/app8081345

Watt-Level Continuous-Wave Single-Frequency Mid-Infrared Optical Parametric Oscillator Based on MgO:PPLN at 3.68 µm

1
College of Science, Hohai University, Nanjing 211100, China
2
College of Computer and Information, Hohai University, Nanjing 211100, China
3
College of Science, Nanjing University of Aeronautics and Astronautics, Nanjing 211106, China
*
Authors to whom correspondence should be addressed.
Received: 13 July 2018 / Revised: 3 August 2018 / Accepted: 5 August 2018 / Published: 10 August 2018
(This article belongs to the Special Issue State-of-the-art Laser Gas Sensing Technologies)
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Abstract

We report a continuous-wave single-frequency singly-resonant mid-infrared optical parametric oscillator (OPO). The OPO is based on 5 mol % MgO-doped periodically poled lithium niobate (MgO:PPLN) pumped by a continuous-wave single-frequency Nd:YVO4 laser at 1064 nm. A four-mirror bow-tie ring cavity configuration is adopted. A low-finesse intracavity etalon is utilized to compress the linewidth of the resonant signal. A single-frequency idler output power higher than 1 W at 3.68 µm is obtained. View Full-Text
Keywords: mid-infrared; single-frequency; optical parametric oscillator (OPO); MgO:PPLN crystal; continuous-wave (CW) mid-infrared; single-frequency; optical parametric oscillator (OPO); MgO:PPLN crystal; continuous-wave (CW)
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).
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Zhao, J.; Cheng, P.; Xu, F.; Zhou, X.; Tang, J.; Liu, Y.; Wang, G. Watt-Level Continuous-Wave Single-Frequency Mid-Infrared Optical Parametric Oscillator Based on MgO:PPLN at 3.68 µm. Appl. Sci. 2018, 8, 1345.

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