Fabrication and characterization of polyvinyl-alcohol-based thin-film optical waveguides

被引：22

作者：

Kumar, R ^{[1
]}

Singh, AP ^{[1
]}

Kapoor, A ^{[1
]}

Tripathi, KN ^{[1
]}

机构：

[1] Univ Delhi, Dept Elect Sci, New Delhi 21, India

来源：

OPTICAL ENGINEERING | 2004年 / 43卷 / 09期

关键词：

polyvinyl alcohol; waveguides; prism coupling; propagation loss; effective refractive index;

D O I：

10.1117/1.1779623

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Polyvinyl alcohol (PVA)-based thin film optical waveguides are fabricated and characterized. Various waveguide parameters, namely, refractive index, propagation losses and depth, birefringence, and polarization conversion properties of dip-coated thin film optical waveguides are evaluated. The effective refractive index of PVA film is found to be between 1.506 and 1.531 for various concentrations. The propagation losses are 2.35 to 0.30 dB/cm for various thicknesses. The propagation loss reduces when the thickness of the film is increased. The low propagation losses, birefringence insensitivity, high transmission in the aged and annealed waveguides, control over film refractive index, the good adhesiveness of the film and good compatibility with substrate show that PVA-based waveguides are promising candidates for the optoelectronic field. (C) 2004 Society of Photo-Optical Instrumentation Engineers.

引用

页码：2134 / 2142

页数：9

共 8 条

[1] Determination of waveguide parameters of acrylonitrile-based polymer optical waveguides [J].