US 2022/0103261 A1 · POWER EFFICIENT AND SCALABLE CO-PACKAGED OPTICAL DEVICES

Abstract

A co-packaged optical-electrical chip can include an application-specific integrated circuit (ASIC) and a plurality of optical modules, such as optical transceivers. The ASIC and each of the optical modules can exchange electrical signaling via integrated electrical paths. The ASIC can include Ethernet switch, error correction, bit-to-symbol mapping/demapping, and digital signal processing circuits to pre-compensate and post-compensate channel impairments (e.g., inter-channel/intra-channel impairments) in electrical and optical domains. The co-packaged inter-chip interface can be scaled to handle different data rates using spectral efficient signaling formats (e.g., QAM-64, PAM-8) without adding additional data lines to a given design and without significantly increasing the power consumption of the design.

Claims20

Dependent claims

A method comprising:

generating data by an application specific integrated circuit (ASIC) of a co-packaged optical-electrical chip, the co-packaged optical-electrical chip comprising one or more co-packaged optical modules connected to the ASIC by integrated electrical paths;
generating a digital signal by mapping the data to symbol data by a plurality of symbol encoding circuits in the ASIC;
converting the digital signal to analog electrical signal using a digital to analog converter in the ASIC;
transferring the analog electrical signal from the ASIC to the one or more co-packaged optical modules using the integrated electrical paths in the co-packaged optical-electrical chip;
and
generating, using the one or more co-packaged optical modules, optical signal from the analog electrical signal by using the analog electrical signal to drive an optical modulator in the one or more co-packaged optical modules.

3 more elements

Dependencies are inferred from the claim text.

Power efficient and scalable co-packaged optical devices

Life of this patent

Power efficient and scalable co-packaged optical devices

Life of this patent

Abstract

Claims20