Patent ID: 7260293

Claim:
An integrated optical apparatus, comprising: a planar waveguide having an elongate guiding portion and a grating coupler adjacent to the elongate guiding portion, said elongate guiding portion and grating coupler being disposed in a plane, said grating coupler having a flared end opposite the elongate guiding portion, said grating coupler comprising a grating comprising a plurality of elongate scattering elements including a first elongate scattering element that is segmented into scattering portions and a second elongate scattering element that is unsegmented, wherein a light beam propagating inside said elongate guiding portion and said grating coupler follows a longitudinal direction contained in said plane, wherein said grating coupler redirects said light beam to produce a redirected light beam outside of said plane, and wherein a lateral spatial profile of said redirected light beam is determined based on a configuration of said plurality of elongated scattering elements.