PM Fiber Rotator Assembly for Automated Multi-Fiber Alignment
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing methods for aligning polarization-maintaining (PM) optical fibers in silicon photonic applications are not automated or scalable, leading to inefficiencies in coupling efficiency and polarization state preservation.
Innovation Solution
A system utilizing an imaging system and neural networks to detect PM fiber end faces and predict rotation angles, combined with a fiber rotator assembly to automatically align the fibers, enabling precise and simultaneous alignment of multiple PM fibers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If manual alignment methods are used for PM fibers, then alignment precision can be achieved, but productivity is low and the process is not scalable
Solution Approach 1:
The patent replaces manual mechanical alignment operations with an automated system comprising an imaging system for capturing fiber images, a processor for analyzing images and determining rotation angles, and a fiber rotator for executing precise rotational adjustments. This substitution of manual mechanical operations with an automated opto-mechanical system simultaneously achieves high alignment precision and high productivity, resolving the technical contradiction between manual alignment accuracy and automated alignment speed.
2Manufacturing precision
If individual fiber alignment is performed sequentially, then alignment precision is maintained, but alignment time increases
Solution Approach 1:
The patent segments the alignment process into independent parallel operations: the imaging system captures images of multiple fibers simultaneously, the processor analyzes each fiber's orientation independently to determine individual rotation angles, and the fiber rotator executes precise rotational adjustments for each fiber. This segmentation enables multi-fiber alignment to proceed in parallel rather than sequentially, dramatically reducing total alignment time while maintaining the precision of individual fiber alignment through dedicated image analysis and rotation control for each fiber.
3Productivity
If automated alignment systems are implemented, then productivity increases, but device complexity increases
Solution Approach 1:
The patent implements a universal automated alignment system where a single integrated platform performs multiple functions: the imaging system captures fiber images, the processor analyzes images and calculates rotation angles for multiple fibers, and the fiber rotator executes precise rotational adjustments. This multi-functional universal system replaces multiple separate manual operations, achieving high productivity through automation while managing complexity through functional integration rather than requiring separate specialized devices for each alignment task.
Data Source
AI summary
A fiber rotator system includes a clamp assembly and a fiber rotator assembly for aligning multiple optical fibers. The clamp assembly has a base with fiber channels, fiber clamps, and a guide assembly. The fiber rotator assembly includes a linear actuator and wheel clamps, each aligning with a fiber base channel. Each fiber clamp includes a jaw, connecting rod, spring, and handle, while each wheel clamp includes a linear actuator contactor, wheel jaw, fiber channel rod, and wheel guide. A fiber detection and alignment system analyzes fiber end faces and provides alignment data to a fiber rotator controller. In operation, each wheel clamp contacts and rotates with the linear actuator. The fiber rotator controller selectively engages and disengages the fiber clamps and wheel clamps to iteratively rotate and secure fibers until all fibers are aligned. The system scalably automates alignment of multiple polarization maintaining (PM) fibers with high precision.