Patent ID: 11960122
Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY LTD.
Field: Optics (Instruments)
Classification: CPC G | IPC G

Claim 12:
13. A system for optical signal processing, the system comprising:
a first optical fiber configured to transmit one or more optical signals using a light beam; and
a photonic die configured to process the one or more optical signals, the photonic die comprising:
a first layer formed from a material transparent to the light beam;
a first lens formed within a silicon portion of the first layer and adjacent to a top surface of the first layer, the first lens being associated with the first optical fiber and comprises a plurality of anti-reflective coating (ARC) layers formed above a curved surface;
a second layer located underneath the first layer and adjacent to another surface of the first layer, the second layer formed from the material transparent to the light beam;
a waveguiding layer located underneath the second layer, and configured to waveguide the light beam transmitted in the waveguiding layer; and
a first grating coupler associated with the first lens and formed over the waveguiding layer, wherein the first lens is configured to receive, from one of the grating coupler or a light-guiding element, the light beam, and focus the light beam towards another one of the light-guiding element or the grating coupler.