Wang, Pengfei, Brambilla, G., Semenova, Y., Wu, Qiang, Zheng, Jie and Farrell, G.
Proposal for a simple polarization converter based on integrated optical ion exchanged waveguide
At 9th International Conference on Optical Communications and Networks (ICOCN 2010).
24 - 27 Oct 2010.
A simple, compact, low-cost electro-optic polarization converter based on a nematic liquid crystal (LC) sandwiched between two ion-exchanged glass channel waveguides is proposed. A three-dimensional (3D) fully-vectorial (FV) finite difference beam propagation method (FDBPM) is used to simulate this optical device. The performance of the proposed polarization converter is analyzed numerically at zero and 5 V applied voltage for the case of strong anchoring of LC molecules to the surface of the waveguide. The polarization conversion efficiency is ~65% at a wavelength of 1550 nm. The total length of the directional coupler structure based converter is only 724 µm.
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