Extended phase matching of second-harmonic generation in periodically poled KTiOPO4 with zero group-velocity mismatch

被引：88
作者：
König, F [1 ]
Wong, FNC [1 ]
机构：
[1] MIT, Elect Res Lab, Cambridge, MA 02139 USA
来源：
APPLIED PHYSICS LETTERS | 2004年 / 84卷 / 10期
关键词：
D O I：
10.1063/1.1668320
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
Under extended phase-matching conditions, the first frequency derivative of the wave-vector mismatch is zero and the phase-matching bandwidth is greatly increased. We present extensive three-wave mixing measurements of the wave-vector mismatch and obtain improved Sellmeier equations for KTiOPO4. We observed a type-II extended phase-matching bandwidth of 100 nm for second-harmonic generation in periodically poled KTiOPO4, centered at the fundamental wavelength of 1584 nm. Applications in quantum entanglement and frequency metrology are discussed. (C) 2004 American Institute of Physics.
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页码：1644 / 1646
页数：3
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