Design and characterization of compact single-section passivepolarization rotator |
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| Authors: | Rahman B.M.A. Obayya S.S.A. Somasiri N. Rajarajan M. Grattan K.T.V. El-Mikathi H.A. |
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| Affiliation: | Dept. of Electr. Electron. & Inf. Eng., City Univ., London; |
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| Abstract: | In this paper an improved design for a short and low-loss polarization rotator is proposed, consisting of a single-section asymmetrical waveguide butt-coupled between two standard rib waveguides. At a wavelength of 1.55 μm, nearly 100% polarization conversion ratio is obtained, with a relatively short (320 μm) device length and an extremely low 0.5 dB total insertion loss. The simulation results are obtained using the full vectorial finite-element-based beam propagation, the junction analysis, and the modal solution approaches |
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