Comparison of photorefractive damage effects in LiNbO3, LiTaO3, and Ba1-xSrxTiyNb2-yO6 optical waveguides at 488 nm wavelength

被引：13

作者：

Eknoyan, O ^{[1
]}

Taylor, HF ^{[1
]}

Matous, W ^{[1
]}

Ottinger, T ^{[1
]}

Neurgaonkar, RR ^{[1
]}

机构：

[1] ROCKWELL INT SCI CTR,THOUSAND OAKS,CA 91360

来源：

APPLIED PHYSICS LETTERS | 1997年 / 71卷 / 21期

关键词：

D O I：

10.1063/1.119434

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Photorefractive-induced damage effects at 488 nm wavelength in LiNbO3, LiTaO3, and Ba1-xSrxTiyNb2-yO6 (BSTN) optical waveguides are compared for the extraordinary mode of polarization. The damage effects are strongest in LiNbO3 and weakest in BSTN. At an input power density of 3000 W/cm(2), the output power from passive channel waveguide in LiNbO3 is more than 12 dB lower than in BSTN. Optically induced index changes measured using a Fabry-Perot interferometric method show a nonlinear behavior with increasing input intensity for all these materials. For incident power densities greater than 200 W/cm(2) on the waveguide, the optically induced index-change damage increases at a rate of 2.8x10(-3) cm(2)/mu W in LiNbO3, 4.9 x 10(-4) cm(2)/mu W in LiTaO3, and 3.1x10(-4) cm(2)/mu W in BSTN. (C) 1997 American Institute of Physics.

引用

页码：3051 / 3053

页数：3

共 14 条

[1] Photorefractive damage to bulk crystals and channel waveguides in periodically poled lithium tantalate [J].