Photorefractive effect in proton-implanted Fe-doped KNbO3 waveguides at telecommunication wavelengths

被引：20

作者：

Brulisauer, S ^{[1
]}

Fluck, D ^{[1
]}

Gunter, P ^{[1
]}

Beckers, L ^{[1
]}

Buchal, C ^{[1
]}

机构：

[1] FORSCHUNGSZENTRUM JULICH, FORSCHUNGSZENTRUM, INST SCHICHT & IONENTECH 2, KOOPERAT FORSCH & ANWENDUNG, D-52425 JULICH, GERMANY

来源：

JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS | 1996年 / 13卷 / 11期

关键词：

D O I：

10.1364/JOSAB.13.002544

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We report on photorefractive two-beam coupling in proton-implanted Fe-doped KNbO3 waveguides at wavelengths from 632.8 to 1550 nm. Exponential gain coefficients of 11 and 0.9 cm(-1) were measured at wavelengths of 632.8 nm and 1550 nm, respectively. Photorefractive response times as low as 120 mu s are reported at 632.8 nm for a pump power of 4 mW. It is shown that proton irradiation increases the effective trap density, decreases the response time, and extends the photorefractive sensitivity of Fe-doped KNbO3 crystals toward near-infrared wavelengths. (C) 1996 Optical Society of America.

引用

页码：2544 / 2548

页数：5

共 13 条

[1] HIGH-GAIN 2-WAVE MIXING IN H+-IMPLANTED PHOTOREFRACTIVE FE-KNBO3 PLANAR WAVE-GUIDES [J].