Optical Module Single Casing Partition Crosstalk Reduction
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Solution Overview
Problem
Existing optical modules face challenges in efficiently arranging and protecting optical receiver and transmitter components due to narrow internal spaces within separate casings, leading to difficulties in component arrangement and potential crosstalk between these components.
Innovation Solution
An optical module design that incorporates a single casing with divided chambers for the optical receiver and transmitter, utilizing a printed circuit board, optical adapters, and displacement prisms to direct optical signals, thereby facilitating easier component arrangement and minimizing crosstalk by using a single casing with a partition to separate the optical transmitter and receiver assemblies.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If separate casings are used for optical receiver and transmitter, then component protection is improved, but space utilization deteriorates and component arrangement becomes difficult
Solution Approach 1:
The patent merges the optical receiver and transmitter into a single integrated casing, eliminating the need for separate casings. This consolidation improves space utilization while maintaining component protection through internal partitioning and positioning structures within the unified casing.
Solution Approach 2:
The patent employs nesting by placing the optical receiver and transmitter assemblies within the same casing, with one assembly nested alongside the other. This nested arrangement within a single casing optimizes space utilization while preserving the protective function through the shared casing structure.
2Reliability
If separate casings are used for optical receiver and transmitter, then component isolation is improved, but device complexity deteriorates
Solution Approach 1:
The patent combines multiple casings into a single integrated casing, reducing the overall number of separate components and simplifying the device structure. This merging approach decreases device complexity while maintaining functional isolation through internal design features.
Solution Approach 2:
The patent segments the internal space of the single casing into distinct regions for the optical receiver and transmitter using partition walls or positioning structures. This segmentation provides functional isolation between components while keeping them within a unified external casing, thereby reducing overall device complexity.
3Volume of moving object
If narrow internal spaces are used in separate casings, then compactness is improved, but component arrangement becomes difficult
Solution Approach 1:
The patent utilizes three-dimensional spatial arrangement within the single casing, arranging optical components along different axes and dimensions. This dimensional optimization allows for effective component placement and light path routing while maintaining a compact overall form factor, making both assembly and manufacturing more feasible.
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 design enhances space utilization and prevents crosstalk between optical receiver and transmitter components, allowing for effective arrangement and operation within a single casing, improving the overall efficiency and functionality of the optical module.
Implementation Method 1
The first displacement prism is disposed in the casing, and is configured to direct the second optical signals to an optical receiver assembly
Implementation Method 2
The optical transmitter assembly is disposed in the casing, and is configured to convert the plurality of first electrical signals into first optical signals
Implementation Method 3
At least one component of the optical receiver assembly is arranged in the casing, and is configured to convert the second optical signals into a plurality of second electrical signals
Data Source
AI summary
An optical module includes: a casing; a printed circuit board (PCB) connected to a first side wall of the casing and configured to provide first electrical signals to an optical transmitter assembly; the optical transmitter assembly arranged in the casing and configured to convert the first electrical signals into first optical signals; an optical receiver adapter and an optical transmitter adapter arranged outside the casing and connected to a second side wall of the casing, wherein the optical transmitter adapter is configured to receive second optical signals; a first displacement prism arranged in the casing and configured to direct the second optical signals toward an optical receiver assembly; and the optical receiver assembly configured to convert the second optical signals into second electrical signals. At least one component of the optical receiver assembly is arranged in the casing.