Adaptive Optical Interconnection via Polymer Waveguides
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Solution Overview
Problem
Current optical component fabrication, such as optical transceivers, is costly due to precise packaging requirements, which limits throughput as pick-and-place robots perform sequential alignment and bonding with moderate efficiency.
Innovation Solution
Reversing the order of waveguide fabrication and component positioning by first arranging components with moderate accuracy on a support layer, embedding them in a material, and then adaptively fabricating optical polymer waveguides to connect subsets of components based on identified positions, using direct laser writing and compressive molding techniques.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If pick-and-place robots are used for sequential alignment and bonding of optical components, then manufacturing precision is improved, but productivity deteriorates
Solution Approach 1:
The patent inverts the conventional fabrication sequence by first placing components with moderate precision using automated pick-and-place robots, then fabricating waveguides adaptively around the actual component positions. This reversal eliminates the need for high-precision initial placement while maintaining final optical connection quality, thereby resolving the contradiction between manufacturing precision and productivity.
Solution Approach 2:
The patent changes the precision parameter requirement from the component placement stage to the waveguide fabrication stage. Instead of requiring high placement precision, the system accepts moderate precision placement and compensates by adapting waveguide paths to the actual component positions, thus improving throughput without sacrificing connection quality.
2Manufacturing precision
If components are positioned with high precision before waveguide fabrication, then manufacturing precision is improved, but device complexity increases
Solution Approach 1:
The patent inverts the conventional approach by fabricating waveguides after component placement rather than before. This allows the use of moderate-precision placement equipment while using adaptive waveguide fabrication to achieve precise optical connections, thereby reducing the complexity of the placement process while maintaining overall manufacturing precision.
3Manufacturing precision
If sequential alignment and bonding is performed with high precision requirements, then manufacturing precision is improved, but loss of time increases
Solution Approach 1:
The patent reverses the fabrication sequence to perform component placement first with moderate precision, then fabricate waveguides adaptively. This eliminates time-consuming high-precision alignment steps during placement and replaces them with a single adaptive waveguide fabrication process, significantly reducing total fabrication time while maintaining connection accuracy.
Solution Approach 2:
The patent performs preliminary component placement with moderate precision before waveguide fabrication, rather than requiring final precision placement after waveguide creation. This preliminary action with relaxed tolerances speeds up the placement process while the subsequent adaptive waveguide fabrication ensures precise optical connections.
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 improves fabrication throughput by allowing for faster and more accurate optical wiring, reducing alignment constraints and enabling rapid mass production of optically interconnected components with moderate initial placement accuracy.
Implementation Method 1
a laser beam is used to write the polymer waveguides
Implementation Method 2
The compression mold is then released, so that the arranged components are embedded in the polymer material
Data Source
AI summary
Embodiments include a method for interconnecting components of an optical circuit. The method includes arranging the components on a support layer and embedding them within a material, such that portions of the material that is between the components contact the support layer. The obtained components are positioned with a certain inaccuracy with respect to ideal nominal positions thereof. Next, the support layer is removed to reveal one side of the components, on which side the components are level with said portions of said material. Positions of the components are identified and a set of optical polymer waveguides are adaptively fabricated, on the one side, so as for each of the fabricated polymer waveguides to optically connect subsets of two or more of the components, according to the identified positions of the components. The present invention is further directed to related optical circuits or electro-optical circuits of interconnected components.