Optical Sub-Assembly Block Adjustable Positioning System
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Solution Overview
Problem
Conventional optical transceivers face challenges in stabilizing transmitter and receiver optical sub-assemblies (TOSA and ROSA) within optical sub-assembly blocks to ensure proper positioning and orientation for effective optical communication with optical fibers, as mechanical details and electrical connections vary between manufacturers and models.
Innovation Solution
The use of adjustable elements, such as set screws, within optical sub-assembly blocks to securely position and retain TOSA and ROSA in desired X, Y, and Z axes, allowing for precise alignment and stabilization with optical connectors, enabling reliable optical communication.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If conventional fixed positioning methods are used for TOSA and ROSA, then assembly is simple, but positioning precision and alignment with optical fibers deteriorate
Solution Approach 1:
The patent employs adjustable positioning elements (screws, springs, or cam mechanisms) that allow dynamic adjustment of TOSA and ROSA positions during assembly and maintenance. These elements enable operators to fine-tune the positioning of optical sub-assemblies to achieve precise alignment with optical fibers, transforming a static positioning system into a dynamic one that can be adapted to manufacturing tolerances and assembly variations.
2Stability of the object's composition
If adjustable positioning elements are added to stabilize TOSA and ROSA, then positioning stability improves, but device complexity increases
Solution Approach 1:
The patent incorporates pre-configured adjustment mechanisms within the optical sub-assembly block that are prepared in advance for positioning TOSA and ROSA. These mechanisms include pre-positioned adjustment screws, springs, or cam structures that facilitate stable positioning through simple operational actions during assembly, rather than requiring complex real-time adjustments.
Solution Approach 2:
The positioning and retention system is designed to be self-adjusting through operational procedures. The adjustable elements allow the system to self-stabilize the TOSA and ROSA positions during assembly and maintenance operations, eliminating the need for external complex stabilization systems while achieving reliable positioning through the inherent adjustability of the integrated mechanisms.
3Adaptability or versatility
If mechanical details vary between manufacturers and models, then adaptability to different designs improves, but standardization and ease of manufacture deteriorate
Solution Approach 1:
The patent designs the optical sub-assembly block with universal adjustable positioning elements that can accommodate various TOSA and ROSA configurations from different manufacturers and models. The adjustment mechanisms are designed to work with multiple optical sub-assembly types, allowing a single block design to serve multiple purposes and maintain compatibility across different designs while preserving the ability to achieve precise positioning for each variant.
Data Source
AI summary
In one example, an optical transceiver is provided that includes a ROSA and a TOSA received within a block portion of an OSA block. The OSA block also includes two groups of adjustable elements, one group for each of the ROSA and the TOSA. The adjustable elements of the first group engage the block portion so as to contact the ROSA, and the adjustable elements of the second group engage the block portion so as to contact the TOSA. The position of the adjustable elements in each respective group can then be varied as necessary to locate and/or maintain the ROSA and TOSA in desired positions and orientations relative to, for example, respective optical connector ports of the optical transceiver.