SUMMARY 0005 Embodiments of the inventive concepts provide methods of forming an
optical coupler having improved opti cal coupling efficiency. 0006. According to example …

Various exemplary embodiments relate to an optical waveguide coupler including: a first
optical waveguide including a first area and a tapered area having a tapered width; a …

In some embodiments, an optical coupler comprises a Sub strate, and first and second
optical waveguides positioned on the Substrate. The second optical waveguide extends …

An optical coupler includes a first waveguide including a first multi-mode waveguide section
having a cross-section characterized by a first height and a first width that is greater than the …

An optical waveguide structure may include a dielectric layer having a top surface, an optical
waveguide structure, and an optical coupler embedded within the dielectric layer. The …

(57) Optical waveguide and coupler devices and methods include a trench formed in a bulk
semiconductor substrate, for example, a bulk silicon Substrate. A bottom cladding layer is …

An optical waveguide includes a coupling optic and a waveguide body. According to one
embodiment, the body includes a first curved surface that extends between an input Surface …

A composite optical waveguide is constructed using an array of waveguide cores, in which
one core is tapered to a larger dimension, so that all the cores are used as a composite input …

The present invention provides an apparatus and method for operation therefore. The
apparatus, in one embodiment, includes an optical coupling structure disposed within a …

One example includes an optical coupler. The optical coupler includes a waveguide formed
in a first layer of a layered structure that is to propagate an optical signal. The waveguide …