2-WAVE MIXING IN PHOTOREFRACTIVE ION-IMPLANTED KNBO3 PLANAR WAVE-GUIDES AT VISIBLE AND NEAR-INFRARED WAVELENGTHS

被引：27

作者：

ZHA, M

FLUCK, D

GUNTER, P

FLEUSTER, M

BUCHAL, C

机构：

[1] SWISS FED INST TECHNOL, INST QUANTUM ELECTR, CH-8093 ZURICH, SWITZERLAND

[2] FORSCHUNGSZENTRUM JULICH, INST SCHICHT & IONENTECH, W-5170 JULICH, GERMANY

[3] EASTERN CHINA UNIV CHEM TECHNOL, DEPT PHYS, SHANGHAI, PEOPLES R CHINA

来源：

OPTICS LETTERS | 1993年 / 18卷 / 08期

关键词：

D O I：

10.1364/OL.18.000577

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We report what is to our knowledge the first observation and characterization of the photorefractive effect in ion-implanted KNbO3 waveguides. The implantation was performed with 2.6-MeV He ions at a dose of 7.5 X 10(14) cm-2. We measured two-wave-mixing gains of approximately 8 and approximately 2 cm-1 at wavelengths of 514.5 and 810 nm, respectively, and grating buildup times in the visible and the near infrared of typically 40 mus at a power level of 10 mW. Electrons are found to be the dominant charge carriers, implying that the gain direction is reversed in the waveguide as compared with that of the bulk crystal.

引用

页码：577 / 579

页数：3

共 16 条

[1] REFRACTIVE-INDEXES OF ORTHORHOMBIC KNBO3 .2. PHASE-MATCHING CONFIGURATIONS FOR NONLINEAR-OPTICAL INTERACTIONS [J].