Highly tolerant tunable waveguide polarization rotator scheme

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DOIResolve DOI: http://doi.org/10.1364/OL.37.003534
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TypeArticle
Journal titleOptics Letters
ISSN0146-9592
Volume37
Issue17
Pages35343536; # of pages: 3
SubjectExtinction ratios; Fabrication errors; Fabrication tolerances; Polarization conversion; Polarization extinction ratio; Polarization rotator; Silicon on insulator; Tunable wave-guides; Wavelength tunability; Wavelength tuning; Errors; Fabrication; Optical communication
AbstractIntegrated polarization rotators are known to exhibit stringent fabrication tolerances, which severely handicap their practical application. Here we present a general polarization rotator scheme that enables both the compensation of fabrication errors and wavelength tunability. The scheme is described analytically, and a condition for perfect polarization conversion is established. Simulations of a silicon-on-insulator polarization rotator show polarization extinction ratios in excess of 40 dB even in the presence of large fabrication errors that in a conventional rotator configuration degrade the extinction ratio to below 5 dB. Additionally, wavelength tuning over ±30 nm is shown.
Publication date
LanguageEnglish
AffiliationInformation and Communication Technologies; National Research Council Canada
Peer reviewedYes
NPARC number21270154
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Record identifier73bbab35-cac6-409f-b543-b7975d2cee1b
Record created2014-01-06
Record modified2016-05-09
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