New compact polarization rotator in anisotropic LiNbO_3 graded-index waveguide | Zendy

А.В. Царев | Zendy

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New compact polarization rotator in anisotropic LiNbO_3 graded-index waveguide

Author(s) -

А.В. Царев

Publication year - 2008

Publication title -

optics express

Language(s) - Uncategorized

Resource type - Journals

SCImago Journal Rank - 1.394

H-Index - 271

ISSN - 1094-4087

DOI - 10.1364/oe.16.001653

Subject(s) - lithium niobate , optics , polarization (electrochemistry) , waveguide , materials science , polarization rotator , anisotropy , refractive index , beam propagation method , optoelectronics , birefringence , physics , chemistry

The new compact polarization rotator in anisotropic graded index Ti:LiNbO(3) channel waveguide is proposed and investigated by 3D beam propagation method (BPM). Device is based on a channel optical waveguide directed at small angle (about 5 degrees) with respect to Z-axis on Y-cut lithium niobate substrate. The polarization conversion from quasi-TE to quasi-TM guided modes (and backwards) along 8 mm long waveguide with an index contrast 0.015, has been numerically demonstrated. Device is intended for polarization diversity of integrated optic elements based on LiNbO(3) structures.

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