Self-Forming Optical Waveguides for Fiber Alignment
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Solution Overview
Problem
The existing techniques for optically connecting single-mode optical fibers to multicore fibers face challenges due to size discrepancies and variations in fiber alignment, leading to increased manufacturing costs and reduced yield, as precise alignment is required to avoid erroneous connections and variations in core gaps.
Innovation Solution
The development of an optical connector using self-forming optical waveguides formed by photo-curing resin, where multiple optical fibers and a multicore fiber are arranged facing each other, with the resin curing to create optical waveguides that can be detached for re-use, allowing for accurate and cost-effective manufacturing with reduced connection loss.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If single-mode optical fibers are optically connected to multicore fiber cores using conventional alignment techniques, then optical connection is achieved, but manufacturing cost increases and yield decreases due to precise alignment requirements
Solution Approach 1:
The optical waveguide automatically forms itself through photo-curing resin that self-aligns with the optical fiber core and multicore fiber core during curing, eliminating the need for manual precise alignment operations. The system serves itself by using the optical fields from the fibers to define the waveguide path, achieving both high connection accuracy and improved manufacturing yield.
2Manufacturing precision
If conventional alignment techniques are used to connect optical fibers of different sizes, then optical connection is achieved, but manufacturing cost increases due to precise alignment requirements
Solution Approach 1:
The photo-curing resin automatically defines the optical waveguide path by self-aligning with the optical fiber core and multicore fiber core during the curing process. This self-service mechanism eliminates complex alignment operations and reduces manufacturing precision requirements while maintaining high connection accuracy, thereby reducing manufacturing cost.
3Stability of the object's composition
If optical fibers are permanently fixed in the optical connector, then connection stability is maintained, but fiber re-use and application scope are limited
Solution Approach 1:
The optical connector employs a dynamic design where optical fibers can be detached and re-attached to the optical waveguide. This dynamic capability allows the same optical waveguide to accommodate different optical fibers for various applications, improving both connection stability during use and adaptability for re-use and versatility.
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 solution enables the reduction of manufacturing costs and improvement in yield by allowing for the detachment and re-use of highly accurate optical fibers, facilitating the formation of self-forming optical waveguides with consistent core gaps, thereby minimizing connection loss and expanding the application scope of the optical connector.
Implementation Method 1
self-forming optical waveguides formed by photo-curing resin
Data Source
AI summary
An optical connector includes multiple optical fibers; a single multicore fiber; and multiple self-forming optical waveguides, wherein the total number of cores of the multiple optical fibers and the total number of cores of the multicore fiber are identical to each other, the multiple optical fibers and the multicore fiber are arranged facing each other, the self-forming optical waveguides are provided among the multiple optical fibers and the multicore fiber, end portions of the self-forming optical waveguides are optically connected to the cores of the multiple optical fibers and the cores of the multicore fiber, and either the multiple optical fibers or the multicore fiber contacting the end portions of the self-forming optical waveguides is detachable from the self-forming optical waveguides.