Photoelectric Fusion Processor for Optical Encryption
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Solution Overview
Problem
Existing optical technologies face difficulties in implementing multistage operations, particularly XOR and AND operations, which are essential for encryption and authentication in optical communication systems, due to limitations in optical signal processing.
Innovation Solution
A photoelectric fusion processor incorporating Y gates, optical switching circuits, and phase modulators enables optical operation processing for encryption, including XOR and nonlinear operations, by superimposing optical signals, controlling signal paths with electrical signals, and modulating phases.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If optical interference is used for logical operations, then optical signal processing capability is improved, but the ability to perform multistage XOR and nonlinear operations deteriorates
Solution Approach 1:
The patent combines optical interference technology with photoelectric fusion processing. Optical signals are processed through interference to generate intermediate results, which are then converted to electrical signals for nonlinear operations, and finally converted back to optical signals for output. This merging of optical and electrical processing domains enables both optical signal processing capability and multistage operation capability including XOR and nonlinear operations.
Solution Approach 2:
The patent introduces photoelectric conversion as an intermediary mechanism between optical and electrical domains. Optical signals are converted to electrical signals for processing by electrical circuits, and electrical signals are converted back to optical signals for output. This intermediary approach allows optical interference to be combined with electrical-based logical operations, enabling multistage operations including XOR and nonlinear operations that cannot be achieved with optical interference alone.
2Speed
If only optical interference is used, then optical operation speed is improved, but the complexity of implementing encryption operations increases
Solution Approach 1:
The patent segments the encryption operation process into distinct stages: optical signal input, optical interference processing, photoelectric conversion, electrical signal processing for logical operations, and optical signal output. This segmentation allows each stage to be optimized independently - optical stages for speed and electrical stages for computational complexity - thereby reducing overall implementation complexity while maintaining high operation speed.
Solution Approach 2:
The patent replaces purely optical mechanical systems with a hybrid photoelectric system. Instead of attempting to perform all encryption operations purely through optical interference, the system substitutes electrical processing for complex logical operations, leveraging the strengths of both domains to reduce implementation complexity.
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
This approach allows for the successful implementation of encryption operations using optical processing, overcoming previous limitations and enabling secure optical communication.
Implementation Method 1
a Y gate circuit that superimposes optical signals on each other
Implementation Method 2
a phase modulator that modulates a phase of an optical signal
Data Source
AI summary
A cypher system includes a plurality of hardware computers, each hardware computer including a photoelectric fusion processor that includes at least one of (i) a Y gate circuit configured to combine optical signals, (ii) an optical switching circuit configured to switch optical signal paths based on electrical signals, or (iii) a phase modulator configured to modulate a phase of an optical signal. The photoelectric fusion processor is configured to perform optical operation processing and perform an encryption operation including an exclusive OR operation in which two or more bit values are given as inputs, and a nonlinear operation in which two or more bit values are given as inputs.