A device includes three elements fabricated on a common substrate. The first element
includes an active waveguide structure having at least three sub-layers supporting a first …

(57) ABSTRACT A device comprises first, second and third elements fabri cated on a
common substrate. The first element comprises an active waveguide structure comprising …

A method includes defining a first waveguide in a first region of an optical device over a first
dielectric layer over a silicon on insulator (SOI) substrate of the optical device and disposing …

Embodiments disclosed herein generally relate to optical coupling between a highly-
confined waveguide region and a low confined waveguide region in an optical device. The …

There is provided an optoelectronic device including: first and second optical waveguides
arranged on a bulk silicon substrate to be spaced apart from each other in a first direction …

A waveguide structure for optical coupling is provided. The waveguide structure includes a
first waveguide embedded in a cladding of a lower refractive index than the first waveguide …