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.

Additional Metadata
Conference Integrated Photonics Research, Silicon and Nanophotonics, IPRSN 2012
Citation
Cheben, P. (P.), Schmid, J.H. (J. H.), Bock, P.J. (P. J.), Lapointe, J. (J.), Janz, S. (S.), Xu, D.-X. (D. X.), … Glesk, I. (I.). (2012). Refractive index engineering with sub-wavelength gratings in silicon waveguides. In Integrated Photonics Research, Silicon and Nanophotonics, IPRSN 2012.