A facet optical coupler, and techniques for forming a facet optical coupler, that includes a
waveguide disposed in a trench of a substrate are described. The substrate may be a silicon …

Techniques for forming a facet optical coupler that includes a waveguide formed over a
trench of a silicon substrate are described. The trench is formed in a silicon substrate and …

Cantilevered waveguides suspended above an air cavity in an underlying substrate are
described. The waveguide is formed by patterning a waveguide layer in some embodiments …

A semiconductor device includes a semiconductor substrate having a first surface, a second
surface opposite to the first surface, and having a first recess portion formed on the first …

Integrated wavelength selectors are described. The wavelength selector may include silicon
nitride ring resonator disposed vertically between a heater and a temperature sensor. The …

Aspects of the present disclosure are directed to a photonic integrated circuit (PIC) having a
resistivity-engineered sub strate to suppress radio-frequency (RF) common-mode sig nals …

US11221447B1 - Suspended cantilever waveguide - Google Patents US11221447B1 -
Suspended cantilever waveguide - Google Patents Suspended cantilever waveguide …

Embodiments may relate to a wavelength-division multiplexing (WDM) transceiver that has a
silicon waveguide layer coupled with a silicon nitride waveguide layer. In some …