Optical Switching Unit for Multicore Fiber Connection Verification
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Solution Overview
Problem
In optical communication systems using multicore optical fibers, erroneous connections can occur when the wrong type of multicore interface (MCI) is used, making it difficult to identify and correct the mistake, especially with increasing core numbers and diverse communication device locations.
Innovation Solution
A communication device with a switching unit, monitoring unit, and control unit is implemented to monitor light levels and adjust connections, ensuring that only opposing communication devices are connected, using line-symmetric cores and allowing for remote correction of erroneous connections through a light switching mechanism.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the wrong type of MCI is used to connect communication devices, then connection flexibility increases, but connection reliability deteriorates due to erroneous connections between unrelated devices
Solution Approach 1:
The patent uses different colors for transmission and reception ports on MCI connectors to provide visual identification. Transmission ports are marked with one color (e.g., blue) and reception ports with another color (e.g., orange), allowing operators to quickly identify the correct orientation and type of MCI connector, thereby preventing erroneous connections while maintaining connection flexibility.
2Productivity
If the number of cores in MC optical fiber increases to increase communication capacity, then communication capacity improves, but difficulty of detecting and measuring connection correctness worsens
Solution Approach 1:
The patent extends the color coding system to individual cores within the MC optical fiber. Each core is assigned a specific color corresponding to its position and function, allowing operators to visually verify correct core-to-port mappings even in high-core-count fibers. This visual identification system makes it easy to detect connection errors without requiring complex measurement equipment.
3Adaptability or versatility
If MCI connectors are designed with mirror symmetric configurations for different communication device pairs, then adaptability to different device locations improves, but ease of operation worsens due to confusion between similar-looking connectors
Solution Approach 1:
The patent introduces asymmetric visual features to MCI connectors that have mirror symmetric internal configurations. This includes asymmetric color patterns, asymmetric positioning of registration keys, or asymmetric arrangement of identification marks on the connector housing. These asymmetric external features allow operators to quickly distinguish between mirror-symmetric connector types, preventing incorrect connections while maintaining the symmetric internal core mappings required for different device locations.
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 effectively prevents incorrect connections between unrelated communication devices and allows for easy correction of erroneous connections, regardless of the number of cores or device locations, enabling reliable communication by ensuring correct core pairing and remote operational management.
Implementation Method 1
a monitoring unit configured to monitor a light level of light input from the reception port or the transmission port
Implementation Method 2
a switching unit connected to the transmission unit, the reception unit, the transmission port, and the reception port
Data Source
AI summary
A communication device includes: a switching unit connected to a transmission unit, a reception unit, a transmission port, and a reception port, the switching unit being set in a first state in which the transmission unit and the transmission port are connected and the reception unit and the reception port are connected or a second state in which the transmission unit and the reception port are connected and the reception unit and the transmission port are connected; a monitoring unit configured to monitor a light level of light input from the reception port or the transmission port; and a control unit configured to set the switching unit in the first state or the second state based on the light level monitored by the monitoring unit.