Open AccessNumerical Analysis of Asymmetric Silicon Nanowire Waveguide as Compact Polarization Rotator
Author(s) -
D. M. H. Leung,
B. M. A. Rahman,
K. T. V. Grattan
Publication year - 2011
Publication title -
ieee photonics journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.725
H-Index - 73
eISSN - 1943-0655
pISSN - 1943-0647
DOI - 10.1109/jphot.2011.2140098
Subject(s) - engineered materials, dielectrics and plasmas , photonics and electrooptics
In this paper, an ultracompact design of a low-loss silicon (Si) polarization rotator based on a silicon-on-insulator platform, which contains an asymmetric strip Si nanowire waveguide core, is presented. A full-vectorial finite element method and the least squares boundary residual method are used to study the effects of the device parameters, the results of which indicate that a very high polarization conversion with a very low polarization crosstalk is possible.