A light source is coupled to an input facet that directs light from the light source to a core
layer of a waveguide and a gradient index material layer disposed beside the core layer …

Structures for a directional coupler and methods of fabricating a structure for a directional
coupler. A first section of a first waveguide core is laterally spaced from a second section of a …

BACKGROUND In optical transceivers, it is desirable to integrate as many photonic
components in one chip as possible. As integration density increases and the sizes of …

Disclosed are optical devices for coupling radiation between an optical waveguide and an
external medium. In one embodiment, an optical device is disclosed comprising a …

BACKGROUND Many optical telecommunications devices require a low loss interface
between a laser chip and a waveguide of a Photonic Integrated Circuit (PIC). In addition, it is …

BACKGROUND The disclosure relates generally to side-facet couplers having external
mounting Surfaces molded as an internal recess Surface to facilitate alignment of optical …

Integrated-optics systems are presented in which an active-material stack is disposed on a
coupling layer in a first region to collectively define an OA waveguide that supports an …

A semiconductor photonic device includes a substrate, facet (s), and optical coupler (s)
associated with the facet (s). Each optical coupler can couple an electromagnetic field …

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 …

An optical, directional coupler has a first input, a second input, a first output, and a second
output. The coupler is made with a shoulder disposed on a substrate and a first ridge and a …