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Conferences > IPRSN > 2012 > ITu3B > ITu3B.1

Refractive Index Engineering with Sub-Wavelength Gratings in Silicon Waveguides

P. Cheben, J. H. Schmid, P. J. Bock, J. Lapointe, S. Janz, D.-X. Xu, A. Delâge, M. Vachon, R. Halir, A. Ortega-Moñux, C. Alonso Ramos, I. Molina-Fernandez, J.-M. Fédéli, M. Ibrahim, W. N. Ye, A. V. Velasco, M. L. Calvo, and I. Glesk

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Abstract

Recently developed subwavelength structures in silicon waveguides are presented. Subwavelength grating waveguides are discussed along with practical components that exploit the principle of subwavelength refractive index engineering, including fiber-chip grating couplers (<1dB coupling loss), waveguide crossings (−0.02dB loss), a polarization converter (−16 dB extinction ratio), a waveguide multiplexer (crosstalk -35 dB), and a Terahertz optical switch.

© 2012 Optical Society of America

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