High-power and widely tunable mid-infrared optical parametric amplification based on PPMgLN

We report on a high-power and widely tunable optical parametric amplifier (OPA) based on PPMgLN and pumped by a pulsed 1.064 μm MOPA laser. The operating wavelength of the OPA system is continuously tunable from 2.68 to 3.07 μm by adjusting the temperature of PPMgLN crystals, with average output pow...

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Bibliographic Details
Published in:Optics letters 2016-01, Vol.41 (1), p.49-51
Main Authors: Peng, Yuefeng, Wei, Xingbin, Luo, Xingwang, Nie, Zan, Peng, Jue, Wang, Yong, Shen, Deyuan
Format: Article
Language:English
Subjects:
Conversion
Crystals
Energy conversion efficiency
Infrared Rays
Lasers
Magnesium - chemistry
Niobium - chemistry
Optical Devices
Oxides - chemistry
Pumps
Quality factor
Tuning
Wavelengths
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Summary:We report on a high-power and widely tunable optical parametric amplifier (OPA) based on PPMgLN and pumped by a pulsed 1.064 μm MOPA laser. The operating wavelength of the OPA system is continuously tunable from 2.68 to 3.07 μm by adjusting the temperature of PPMgLN crystals, with average output power varying from 74.6 to 66.7 W for 310 W of pump power, corresponding to an optical-to-optical conversion efficiency of ∼22.8% at 2.68 μm and ∼20.5% at 3.07 μm, respectively. Output beam quality factor (M ) of the OPA was measured to be
ISSN:0146-9592
1539-4794
DOI:10.1364/ol.41.000049