Coaxial Optical Cable with Core and Cladding Fibers
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Solution Overview
Problem
Optical cables with multiple fibers require separate connection ports for each channel, increasing space and cost due to over-engineering, while existing technologies do not efficiently address the need for compact and cost-effective bidirectional data transmission.
Innovation Solution
A coaxially arranged optical cable with two channels, where a glass optical fiber core section is surrounded by a polymer optical fiber layer, allowing for bidirectional data transmission with optimized bandwidth for each channel, reducing space requirements and enabling a single connection port.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If multiple optical fibers are arranged parallel in the core section to transmit different data, then the signal and data transmission capability is improved, but the space requirements and device complexity increase due to needing separate connection ports for each fiber
Solution Approach 1:
The patent combines multiple optical fiber functions into a single concentric structure where the core fiber and cladding fiber share a common connection port. The core fiber transmits high-bandwidth data while the cladding fiber transmits control signals or auxiliary data, merging what would traditionally require separate connectors into one integrated interface, thereby reducing space requirements and device complexity while maintaining high transmission capability
Solution Approach 2:
The single connection port serves multiple functions by accommodating both the core fiber and cladding fiber simultaneously. This universal interface handles different types of data transmission (high-bandwidth video/audio signals through the core fiber and control/auxiliary signals through the cladding fiber) through a unified connection mechanism, eliminating the need for separate specialized ports for each function
2Device complexity
If a single optical fiber is used for bidirectional transmission, then space requirements are reduced, but transmission reliability and signal quality deteriorate due to interference between forward and backward signals
Solution Approach 1:
The patent segments the single fiber structure into two distinct transmission pathways: the core fiber for forward transmission and the cladding fiber for backward transmission. This physical segmentation prevents signal interference between bidirectional communications while maintaining a compact single-fiber-cable structure, thus preserving transmission reliability and signal quality without compromising space efficiency
Solution Approach 2:
The concentric cladding structure acts as an intermediary that separates and isolates the backward transmission signals from the core fiber's forward transmission path. This intermediate cladding layer prevents cross-talk and signal interference between bidirectional communications, ensuring high transmission reliability while enabling compact bidirectional communication within a single fiber structure
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
The solution provides a compact, cost-efficient optical cable design with reduced space requirements and optimized channel bandwidth, preventing over-engineering by allowing high-speed data transmission in one direction and lower-speed data transmission in the other, while maintaining low interference and high reliability.
Implementation Method 1
a cladding is provided between a fiber core of the at least one optical fiber and the at least one optical fiber layer
Data Source
Figure 1~2
AI summary
The invention relates to an optical cable (1) comprising a core section (18) with at least one optical fiber (16), extending in a cable direction (12), forming a first channel (14) for transmitting signal and/or data, wherein the core section (18) is surrounded by at least one optical fiber layer (28), forming a second channel (26) for transmitting signal and/or data. With the inventive optical cable (1), a compact and cost efficient design of an optical cable (1), having multiple channels (14, 26), is provided. Each channel (14, 26) can be optimized for its respective application requirements. Furthermore, a coaxial arrangement of the first and second channel (14, 26) is provided, taking up less space than two separate optical fibers (16) arranged parallel to one another.