Subwavelength grating crossings for silicon wire waveguides
Top Cited Papers
- 15 July 2010
- journal article
- Published by Optica Publishing Group in Optics Express
- Vol. 18 (15) , 16146-16155
- https://doi.org/10.1364/oe.18.016146
Abstract
We report on the design, simulation and experimental demonstration of a new type of waveguide crossing based on subwavelength gratings in silicon waveguides. We used 3D finite-difference time-domain simulations to minimize loss, crosstalk and polarization dependence. Measurement of fabricated devices show that our waveguide crossings have a loss as low as −0.023 dB/crossing, polarization dependent loss of < 0.02 dB and crosstalk <-40 dB.Keywords
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