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Extinction ratios and scattering losses of optical intersecting-waveguide switches with curved electrodes

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3 Author(s)
Hatami-Hanza, H. ; Sch. of Electr. Eng., New South Wales Univ., Syndey, NSW, Australia ; Nayyer, J. ; Safavi-Naini, S.

Optical intersecting-waveguide switches with curved electrodes are analyzed. It is shown that the electrode-curvature in the form of a logarithmic spiral results in reflected field distributions in good resemblance to the incident one with reduced transverse shifts. Large extinction ratios and low scattering losses with small voltage-length product are, therefore, achievable. It is concluded that electrode curvature in the form of a logarithmic spiral is effective in realization of low insertion loss, high extinction ratios and small size optical switches

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Lightwave Technology, Journal of  (Volume:12 ,  Issue: 8 )