Polarization separation in titanium-diffused waveguides on lithium niobate substrates

The influence of technological parameters of the process of thermal diffusion of titanium in lithium niobate substrates on the polarization-dependent losses of obtained optical waveguide has been theoretically studied. It is established that the anisotropy of refractive index variation leads to diff...

Full description

Saved in:
Bibliographic Details
Published in:Technical physics letters 2016-05, Vol.42 (5), p.513-516
Main Authors: Karavaev, P. M., Il’ichev, I. V., Agruzov, P. M., Tronev, A. V., Shamray, A. V.
Format: Article
Language:English
Subjects:
Classical and Continuum Physics
Physics
Physics and Astronomy
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The influence of technological parameters of the process of thermal diffusion of titanium in lithium niobate substrates on the polarization-dependent losses of obtained optical waveguide has been theoretically studied. It is established that the anisotropy of refractive index variation leads to different conditions of polarization eigenmode cutoff that can be used for separating extraordinary and quenching ordinary polarization modes. Experiments with titanium-diffused waveguides showed the possibility of extraordinary polarization mode separation above 40 dB in the C-range (1530–1565 nm) of telecommunication wavelengths.
ISSN:1063-7850
1090-6533
DOI:10.1134/S1063785016050266