Photonic Processor Multiplexing for Higher Matrix Throughput
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Solution Overview
Problem
Conventional electronic processors face speed, power, and efficiency limitations due to impedance in electrical interconnects, leading to significant delays and heat dissipation, which are not feasible in photonic processors.
Innovation Solution
Utilizing photonic processors that perform multiplexing and demultiplexing operations using photonic degrees of freedom such as wavelength, frequency, and polarization to enhance throughput and reduce capacitance, enabling parallel matrix multiplication and reducing electrical wire length.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If electronic processors are used for matrix multiplication, then computation can be performed, but processing speed is limited and power consumption increases due to impedance in electrical interconnects
Solution Approach 1:
The patent replaces electrical signal processing with optical signal processing. Photonic processors use optical signals instead of electrical signals to perform matrix multiplication, eliminating the impedance limitations of electrical interconnects. This substitution enables faster processing speeds and reduced power consumption by leveraging the properties of light propagation and optical component interactions.
2Productivity
If photonic processors are used, then processing speed and bandwidth increase, but device complexity increases due to multiplexing and demultiplexing requirements
Solution Approach 1:
The patent combines multiple optical signals carrying different data streams into a single optical path using multiplexing techniques. By merging signals in the optical domain based on photonic degrees of freedom, the system achieves high throughput while managing complexity through integrated photonic circuit designs that perform multiplexing and demultiplexing operations.
Solution Approach 2:
The patent utilizes photonic degrees of freedom such as wavelength, frequency, and polarization to encode and differentiate multiple data streams. By adding these dimensional parameters to the optical signals, the system can process multiple channels simultaneously through a single photonic processor, increasing productivity without proportionally increasing device complexity.
3Ease of operation
If electrical interconnects are used, then signal transmission is simple, but heat dissipation increases and processing delays occur
Solution Approach 1:
The patent substitutes electrical signal transmission with optical signal transmission in photonic processors. Optical signals propagate through waveguides and optical components without the resistive heating problems inherent in electrical interconnects. This substitution maintains signal transmission functionality while dramatically reducing heat dissipation and processing delays.
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
Photonic processors achieve significantly faster matrix-matrix multiplication, with reduced power consumption and increased bandwidth, overcoming the limitations of electronic processors by leveraging optical signals.
Implementation Method 1
multiplexing and demultiplexing operations using photonic degrees of freedom such as wavelength, frequency, and polarization
Implementation Method 2
multiplexing and demultiplexing operations using photonic degrees of freedom such as wavelength, frequency, and polarization
Implementation Method 3
multiplexing and demultiplexing operations using photonic degrees of freedom such as wavelength, frequency, and polarization
Implementation Method 4
a detector coupled to an output of an optical path including the multiplexer, wherein the detector is configured to generate a first current based on the multiplexed optical signal
Implementation Method 5
a modulator coupled to an output of the detector and configured to generate a second current by modulating the first current
Data Source
AI summary
Systems and methods for increasing throughput of a photonic processor by using photonic degrees of freedom (DOF) are provided. The photonic processor includes a multiplexer configured to multiplex, using at least one photonic DOF, multiple encoded optical signals into a multiplexed optical signal. The photonic processor also includes a detector coupled to an output of an optical path including the multiplexer, the detector being configured to generate a first current based on the multiplexed optical signal or a demultiplexed portion of the multiplexed optical signal. The photonic processor further includes a modulator coupled to and output of the detector, the modulator being configured to generate a second current by modulating the first current.