Design and Fabrication of Zinc and Nickel Diffused Lithium Niobate Waveguide Devices(I)
Date Issued
2000-07-31
Date
2000-07-31
Author(s)
王維新
DOI
892215E002007
Abstract
The purpose of this work is to
study the fabrication of
high-extinction-ratio optical
polarization splitter by using zinc and
nickel diffused(ZnNi:)LiNbO3 Optical
waveguides. We fabricated randomly
polarized waveguides using zinc and
nickel as diffusants. By different
fabrication parameters e.g. thicknesses
of zinc and nickel, diffusion
temperature and time, we made
single-TE and single-TM polarized
waveguides. We proposed a
polarization splitter of high extinction
ratio by single-polarization waveguides. This work used zinc and
nickel diffused LiNbO3 as TE arm and
annealed proton-exchange(APE)
LiNbO3 as TM arm. In the Y-branch
structure, TE and TM polarization
waves see TE and TM arms,
respectively. TM-polarized wave
propagates toward APE-LiNbO3, and
TE-polarized wave propagates toward
ZnNi:LiNbO3. Using the single-TE
polarized wave, extinction ratio has
been increased successfully., and we
can design an adequate branching
angle making the polarization splitter
smaller in order to have a higher
density of integration. The work of
this project is expected to be useful for
the local industry in the design and
fabrication of lithium niobate
integrated optical waveguide devices.
Subjects
Lithium Niobate
Zinc
Nickel
Annealed Proton Exchange
Y-branch Waveguide
Publisher
臺北市：國立臺灣大學電機工程學系暨研究所
Type
report
File(s)![Thumbnail Image]()
Loading...
Name
892215E002007.pdf
Size
329.58 KB
Format
Adobe PDF
Checksum
(MD5):31680114d8a4338cd98b584255e78219