Efficiency-enhanced optical parametric down conversion for mid-infrared generation on a tandem periodically poled MgO-doped stoichiometric lithium tantalate chip

We report an efficiency-enhanced mid-infrared generation via optical parametric down conversion. A tandem periodically-poled MgO-doped stoichiometric lithium tantalate crystal is used to realize on-chip generation and amplification of mid-infrared radiation inside an optical parametric oscillator ca...

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Bibliographic Details
Published in:Optics express 2011-08, Vol.19 (18), p.17500-17505
Main Authors: Liu, Y H, Xie, Z D, Ling, W, Yuan, Y, Lv, X J, Lu, J, Hu, X P, Zhao, G, Zhu, S N
Format: Article
Language:English
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Summary:We report an efficiency-enhanced mid-infrared generation via optical parametric down conversion. A tandem periodically-poled MgO-doped stoichiometric lithium tantalate crystal is used to realize on-chip generation and amplification of mid-infrared radiation inside an optical parametric oscillator cavity. We achieved 21.2% conversion efficiency (24% slope efficiency), which is among the highest efficiencies for the pump-to-mid-infrared conversion, with 1064 nm Nd class laser pump. The maximum average output power at 3.87 μm reached 635 mW with a 3.0 W pump.
ISSN:1094-4087
1094-4087
DOI:10.1364/oe.19.017500