Thermal fixing of holographic gratings in planar LiNbO3:Ti:Fe waveguides

被引：21

作者：

Hukriede, J ^{[1
]}

Kip, D ^{[1
]}

Kratzig, E ^{[1
]}

机构：

[1] Univ Osnabruck, Fachbereich Phys, D-49069 Osnabruck, Germany

来源：

APPLIED PHYSICS B-LASERS AND OPTICS | 1998年 / 66卷 / 03期

关键词：

D O I：

10.1007/s003400050397

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Refractive index gratings in planar LiNbO3:Ti:Fe waveguides are thermally fixed during hologram recording at elevated temperatures. Different guides are fabricated by titanium indiffusion using iron-doped and nominally pure y-cut LiNbO3 substrates and characterization is performed by dark-mode spectroscopy. The refractive index modulation of gratings written and simultaneously fixed at 180 degrees C is investigated as a function of propagation depth, titanium and iron concentration. The experimental results are compared with those obtained for unfixed holograms recorded at room temperature.

引用

页码：333 / 338

页数：6

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