Patent ID: 8538223
Filing Date: 2013-09-17
Classification: B82Y,G02B

Abstract:
1. A ring resonator comprising a waveguide with a ring resonator layer, the waveguide comprising a lower cladding layer deposited on a substrate, a patterned core layer deposited on the lower cladding layer, and an upper cladding layer deposited over the patterned core layer; wherein the core layer comprises silicon nitride, amorphous silicon, or amorphous silicon-germanium alloy, and is essentially crack-free, wherein the waveguide is a ridge waveguide or a channel waveguide, wherein the ring resonator layer is on the upper cladding layer, and wherein the ring resonator layer has a ring pattern formed therein and comprises silicon nitride, amorphous silicon, or amorphous silicon-germanium alloy.