Reducing photorefractive effect in periodically poled ZnO- and MgO-doped LiNbO3 wavelength converters

被引：52

作者：

Asobe, M ^{[1
]}

Tadanaga, O ^{[1
]}

Yanagawa, T ^{[1
]}

Itoh, H ^{[1
]}

Suzuki, H ^{[1
]}

机构：

[1] NTT, Photon Labs, Kanagawa 2430198, Japan

来源：

APPLIED PHYSICS LETTERS | 2001年 / 78卷 / 21期

关键词：

D O I：

10.1063/1.1374228

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The photorefractive effect in annealed proton-exchanged waveguides in periodically poled nondoped, MgO- and ZnO-doped LiNbO3 was evaluated by monitoring the quasiphase matching (QPM) wavelength shift induced by a 0.784-mum-irradiating light. The QPM wavelength shift was reduced at room temperature by a factor of 3-6 in ZnO- and MgO-doped samples compared with the nondoped samples within a 10(4)-10(5)-W/cm(2)-irradiation intensity range. The doped samples exhibited no significant wavelength shifts when the temperature was raised to slightly above room temperature (50-60 degreesC). (C) 2001 American Institute of Physics.

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页码：3163 / 3165

页数：3

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