Photonics-Substrate Optical Links for High-Bandwidth Computing

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Solution Overview

Problem

Existing computing systems rely on slow, low-bandwidth, high-latency, and energy-inefficient electrical communication links, limiting their performance.

Innovation Solution

An optical link system utilizing a photonics substrate with waveguides and optoelectronic transducers to enable high-bandwidth, low-latency information transfer between electronics modules, optionally including photonic interposers and various network topologies for efficient communication.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Speed

If electrical communication links are used, then device complexity is reduced, but communication bandwidth and speed are limited

Engineering Contradiction:
Improvecommunication speedVSAvoidsystem complexity
Core Design Contradiction:
SpeedVSDevice complexity

Solution Approach 1:

The patent replaces electrical communication links with optical communication links using waveguides and light signals. This substitution enables significantly higher communication speeds and bandwidth while reducing latency, directly resolving the contradiction between speed and system complexity by leveraging the inherent advantages of optical transmission over electrical transmission.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The patent changes the fundamental parameter of signal transmission from electrical signals to optical signals. By using light instead of electricity for communication, the system achieves higher speeds and bandwidth without proportionally increasing complexity, as the optical infrastructure can be integrated into existing semiconductor fabrication processes.

Inventive Principle:
Principle #35Parameter changes

2Use of energy by moving object

If electrical communication links are used, then ease of manufacture is maintained, but energy efficiency deteriorates

Engineering Contradiction:
Improveenergy consumptionVSAvoidmanufacturing difficulty
Core Design Contradiction:
Use of energy by moving objectVSEase of manufacture

Solution Approach 1:

The patent substitutes electrical signal transmission with optical signal transmission through waveguides. Optical communication is inherently more energy-efficient for high-bandwidth applications, reducing power consumption while maintaining compatibility with standard semiconductor manufacturing processes, thus improving energy efficiency without significantly complicating manufacturing.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The optical communication system uses modulated light signals that can be transmitted periodically or continuously as needed, allowing for efficient energy utilization. The system activates optical transmission only when data communication is required, reducing overall energy consumption compared to continuously active electrical links.

Inventive Principle:
Principle #19Periodic action

3Quantity of substance

If electrical communication links are used, then device simplicity is maintained, but communication bandwidth is limited

Engineering Contradiction:
Improvedata transmission capacityVSAvoidsystem complexity
Core Design Contradiction:
Quantity of substanceVSDevice complexity

Solution Approach 1:

The patent replaces electrical communication infrastructure with optical waveguide-based communication. This substitution enables massively parallel data transmission through multiple waveguides and wavelength-division multiplexing, dramatically increasing bandwidth and data capacity while the underlying fabrication processes remain relatively simple and scalable.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The patent introduces wavelength as an additional dimension for data transmission. By using multiple wavelengths simultaneously in the same physical waveguide, the system achieves multiplexed communication channels, effectively increasing bandwidth without proportionally increasing physical complexity. This dimensional addition allows parallel data streams to coexist in the same infrastructure.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

The optical link system enhances computing performance by providing high-bandwidth, low-latency communication, reducing energy consumption, and improving computational efficiency.

Implementation Method 1

The photonics substrate includes a plurality of waveguides and optical transducers

Methodology Applied
Scientific EffectOptical waveguide transmission: Waveguide (optics)

Implementation Method 2

The photonics substrate includes a plurality of waveguides and optical transducers

Methodology Applied
Scientific EffectOptoelectronic transduction: Photoelectric Effect

Data Source

PatentUS12363464B2Optical link system and method for computation
Publication Date: 2025.07.15 ADVANCED MICRO DEVICES INC
  • US12363464B2 patent drawing
  • US12363464B2 patent drawing
  • US12363464B2 patent drawing

AI summary

An optical link system for computation, preferably including a photonics substrate and a plurality of electronics modules, such as processors, memory controllers, and/or switches, which are preferably bonded to the photonics substrate. A photonics substrate, preferably including a plurality of optical links including waveguides and optical transducers. A method for optical link system operation, preferably including operating electronics modules and using optical links, optionally in cooperation with electronics modules such as switches, to transfer information between the electronics modules.