Optical Computing System Phase Accumulator Banks Energy Efficiency

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Solution Overview

Problem

Typical computing systems require significant energy to perform electronic computations and propagate electrical signals, necessitating the development of a more energy-efficient optical computing system.

Innovation Solution

An optical computation system comprising an optical source, splitter, and phase accumulator banks with detector modules, which perform accumulation-based operations using optical paths and phase shifters to compute and transduce optical signals into electrical signals, potentially reducing energy consumption.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Use of energy by moving object

If electronic computations and electrical signal propagation are used, then computing operations can be performed, but energy consumption is high

Engineering Contradiction:
Improveenergy consumptionVSAvoidcomputational efficiency
Core Design Contradiction:
Use of energy by moving objectVSProductivity

Solution Approach 1:

The patent replaces electronic computation mechanisms with optical computation mechanisms. Optical signals propagate through waveguides and interact via optical phase shifters and interferometers, eliminating the need for electrical signal propagation through resistive circuits. This substitution of electronic systems with optical systems fundamentally reduces energy consumption while maintaining computational functionality.

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

Solution Approach 2:

The patent changes the fundamental parameter of signal transmission from electrical to optical domain. By using optical frequency signals instead of electrical signals, the system exploits the low attenuation and high bandwidth properties of optical waves, enabling computation with significantly lower energy requirements while improving computational throughput and efficiency.

Inventive Principle:
Principle #35Parameter changes

2Use of energy by moving object

If optical signals are used for computation, then energy consumption is reduced, but device complexity increases

Engineering Contradiction:
Improveenergy consumptionVSAvoidsystem complexity
Core Design Contradiction:
Use of energy by moving objectVSDevice complexity

Solution Approach 1:

The optical computing system is divided into distinct functional modules: optical signal sources, waveguide networks, phase shifter arrays, and optical detectors. Each module performs a specific function and can be independently optimized or replaced. This segmentation manages complexity by creating modular building blocks that can be systematically assembled to perform complex computations.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent employs universal optical components such as Mach-Zehnder interferometers and phase shifters that can perform multiple computational functions. These components serve as both signal routing elements and computational elements, enabling the same hardware to perform different logical operations depending on the configuration, thereby reducing overall system complexity.

Inventive Principle:
Principle #6Universality (Multi-functionality)

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 system enables efficient optical and optoelectronic computing operations, potentially lowering energy requirements and improving computational efficiency by leveraging optical signals and phase accumulation techniques.

Implementation Method 1

an optical source

Methodology Applied
Scientific EffectCoherent light generation: Coherent Light

Implementation Method 2

phase accumulator (PA) banks (e.g., as shown in FIGS. 1A-1C). Each PA bank 130 preferably includes two optical paths, a plurality of PA units 131

Methodology Applied
Scientific EffectPhase modulation: Phase Modulation

Implementation Method 3

detector module 132 configured to detect the phase shift of the light

Methodology Applied
Scientific EffectPhotoelectric conversion: Photoelectric Effect

Data Source

PatentUS12045080B1Optical computing system and method of use
Publication Date: 2024.07.23 ADVANCED MICRO DEVICES INC
  • US12045080B1 patent drawing
  • US12045080B1 patent drawing
  • US12045080B1 patent drawing

AI summary

An optical computation system, preferably including an optical source, a splitter, and one or more phase accumulator banks. A phase accumulator bank, preferably including two optical paths, a plurality of phase accumulator units, and a detector module, and optionally including one or more compensation phase shifters. A method, preferably including receiving one or more optical inputs, receiving one or more electrical inputs, controlling one or more phase accumulator units based on the electrical inputs, and generating one or more electrical outputs based on optical signals.