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Appl. Sci. 2018, 8(1), 1;

A High-Power Continuous-Wave Mid-Infrared Optical Parametric Oscillator Module

National Laboratory of Solid State Microstructures, Nanjing University, Nanjing 210093, China
College of Engineering and Applied Sciences, Nanjing University, Nanjing 210093, China
School of Electronic Science and Engineering, Nanjing University, Nanjing 210093, China
Authors to whom correspondence should be addressed.
Received: 31 October 2017 / Revised: 11 December 2017 / Accepted: 12 December 2017 / Published: 21 December 2017
(This article belongs to the Special Issue Solid State Lasers Materials, Technologies and Applications)
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We demonstrate here a compact optical parametric oscillator module for mid-infrared generation via nonlinear frequency conversion. This module weighs only 2.5 kg and fits within a small volume of 220 × 60 × 55 mm3. The module can be easily aligned to various pump laser sources, and here we use a 50 W ytterbium (Yb)-doped fiber laser as an example. With a two-channel MgO-doped periodically poled lithium niobate crystal (MgO:PPLN), our module covers a tuning range of 2416.17–2932.25 nm and 3142.18–3452.15 nm. The highest output power exceeds 10.4 W at 2.7 μm, corresponding to a conversion efficiency of 24%. The measured power stability is 2.13% Root Meat Square (RMS) for a 10 h duration under outdoor conditions. View Full-Text
Keywords: mid-infrared laser; optical parametric oscillator; laser module mid-infrared laser; optical parametric oscillator; laser module

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Liu, Y.; Xie, X.; Ning, J.; Lv, X.; Zhao, G.; Xie, Z.; Zhu, S. A High-Power Continuous-Wave Mid-Infrared Optical Parametric Oscillator Module. Appl. Sci. 2018, 8, 1.

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