Optical Transmission Module Ferrule Alignment
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Solution Overview
Problem
Existing optical transmission modules require time-consuming grinding of exposed end faces for connection, leading to inefficiencies and risks in the production process due to the need for precise alignment and handling of optical transmission lines.
Innovation Solution
The optical transmission module employs a ferrule with a light-transmittable intermediary portion between the end faces of the optical transmission lines, allowing for secure connection without exposing the end faces, thus eliminating the need for grinding and reducing alignment challenges.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If the end faces of optical transmission lines are exposed for direct connection, then alignment precision can be achieved, but the production process becomes time-consuming and complex due to grinding and handling requirements
Solution Approach 1:
The patent introduces a ferrule as an intermediary component that receives and holds the optical transmission lines. The ferrule's inner cavity provides a guiding structure that automatically aligns the optical transmission lines when inserted, eliminating the need for precise manual alignment and grinding of exposed end faces. This mediator component simplifies the connection process while maintaining alignment precision.
2Reliability
If the end faces are exposed for connection, then direct optical transmission can be achieved, but the risk of damage and handling complexity increases
Solution Approach 1:
The ferrule acts as a protective intermediary that encloses the optical transmission lines within its inner cavity. This structure protects the delicate optical transmission lines from external damage, contamination, and handling errors. The ferrule provides a robust outer surface for manipulation while the optical transmission lines remain protected inside, reducing the risk of damage during installation and operation.
3Manufacturing precision
If grinding of exposed end faces is performed, then connection precision can be improved, but the production time and process complexity increase
Solution Approach 1:
The ferrule is pre-formed with an inner cavity that has built-in alignment features and positioning structures. When optical transmission lines are inserted into the ferrule, they are automatically aligned to the correct position without requiring subsequent grinding or adjustment operations. This preliminary preparation of the ferrule structure eliminates time-consuming post-assembly precision work.
Solution Approach 2:
The ferrule serves as a pre-calibrated intermediary component that provides mechanical alignment through its inner cavity geometry. The cavity dimensions and features are precisely manufactured in advance to guide the optical transmission lines into proper alignment, replacing the need for time-consuming on-site grinding and alignment procedures.
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 enhances production efficiency by eliminating the need for grinding and minimizing the risk of damage, while ensuring precise alignment and reducing light losses through optimized refractive index matching and alignment features within the ferrule.
Implementation Method 1
the ferule has a light-transmittable intermediary portion situated between the first end face and the second end face
Data Source
AI summary
An optical transmission module according to the disclosure comprises a first optical transmission line, a second optical transmission line, and a ferrule. The first optical transmission line has a first end face. The second optical transmission line has a second end face opposed to the first end face of the first optical transmission line. An end of the first optical transmission line is situated inside the ferule, and the ferule has a light-transmittable intermediary portion situated between the first end face and the second end face.