Reconfigurable Optical Processing System Alignment
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing optical processing systems face challenges with high alignment tolerances, inflexibility, complex configurations, and susceptibility to mechanical noise and environmental changes, limiting their ability to handle large processing tasks efficiently.
Innovation Solution
The system employs high-resolution reflective liquid crystal panels and zone plates to dynamically align and reconfigure optical components, minimizing alignment tolerances and allowing adaptation to environmental changes, while using beam steering and a honeycomb grid to reduce optical crosstalk, enabling compact and efficient processing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If traditional optical correlator systems are used, then optical pattern recognition can be performed, but high alignment tolerances are required between SLM pixels
Solution Approach 1:
The patent replaces mechanical alignment adjustment with computational correction. Digital signal processing algorithms compensate for pixel misalignment between SLM devices, eliminating the need for precise mechanical positioning. The system uses software-based registration techniques to correct spatial offsets between input and reference SLM pixel grids, thereby resolving the contradiction between maintaining measurement precision and ease of operation.
Solution Approach 2:
The system dynamically adjusts processing parameters including pixel mapping transformations, spatial frequency calibration, and digital resampling factors to compensate for alignment variations. By changing these computational parameters rather than physical positions, the system maintains pattern recognition accuracy while simplifying operational alignment requirements.
2Adaptability or versatility
If fixed configuration optical systems are used, then system structure is simple, but flexibility to adapt to environmental changes is poor
Solution Approach 1:
The patent implements dynamic reconfiguration capabilities where the optical processing system can adapt its configuration in response to environmental changes. The system includes controllable components such as adjustable spatial light modulators and reconfigurable optical paths that can be dynamically modified through software control, enabling adaptation to temperature variations, mechanical drift, and other environmental factors while maintaining manageable system complexity through modular design.
Solution Approach 2:
The system incorporates feedback mechanisms that monitor environmental conditions and system performance, then automatically adjust operational parameters to maintain optimal performance. Sensors detect changes in alignment, temperature, or other environmental factors, and the control system compensates by adjusting digital processing parameters or optical component settings, thereby achieving environmental adaptability without requiring overly complex hardware modifications.
3Productivity
If multiple optical components are used for processing, then processing capability is enhanced, but susceptibility to mechanical noise increases
Solution Approach 1:
The patent replaces multiple mechanical optical components with a hybrid system that uses digital signal processing to perform many functions previously requiring separate optical elements. Computational algorithms implement filtering, correlation, and transformation operations that would otherwise require multiple physical components, thereby reducing the number of mechanical parts susceptible to noise while maintaining enhanced processing capability.
Solution Approach 2:
The system merges multiple optical processing functions into integrated computational modules. Rather than using separate physical components for each processing step, the patent combines multiple operations into unified digital processing stages that operate on optical signals, reducing the mechanical component count and associated noise susceptibility while preserving or enhancing overall processing capability.
4Measurement precision
If optical crosstalk is present, then system operation continues, but processing resolution deteriorates
Solution Approach 1:
The patent extracts and isolates crosstalk signals from the main optical processing path using digital signal separation techniques. The system identifies crosstalk components through computational analysis and separates them from valid signal components, then removes or compensates for the crosstalk contribution in the digital domain, thereby maintaining processing resolution despite the presence of optical crosstalk.
Solution Approach 2:
The system converts optical crosstalk from a harmful factor into a measurable signal characteristic that can be computationally corrected. By modeling crosstalk as a known interference pattern, the system uses digital signal processing to subtract or compensate for its effects, thereby transforming what would be resolution-degrading noise into a correctable artifact that can be eliminated through algorithmic processing.
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 configuration allows for precise and adaptive alignment, reducing mechanical noise and crosstalk, enabling efficient handling of complex tasks like solving partial differential equations and improving processing speed and resolution.
Implementation Method 1
a laser or other coherent source is typically employed to be modulated in either phase or amplitude by one or more spatial light modulator (SLM) devices
Implementation Method 2
a laser or other coherent source is typically employed to be modulated in either phase or amplitude by one or more spatial light modulator (SLM) devices
Implementation Method 3
This is achieved when collimated light is illuminated on an SLM, with the SLM positioned in the front focal plane of the focussing element. The OFT is then produced at the rear focal plane of the focussing element
Implementation Method 4
Other focussing elements that may be used include static diffractive optical elements, typically in the form of zone plates
Data Source
Figure 1~3
Figure 4
Figure 5
AI summary
An optical processing system comprises an optical input; one or more spatial light modulator arrays; and a detector array; wherein at least of said spatial light modulator arrays incorporates a plurality of data elements focusing elements; said data elements and/or said focussing elements having multiple degrees of freedom.