Optical Path Switching Node With Couplers For Non-Interruptive Testing
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing optical fiber network testing methods require communication interruption to switch optical path switching nodes, leading to potential prolonged communication disruptions.
Innovation Solution
An optical path switching node equipped with an optical coupler that allows test light to be coupled, enabling network testing without interrupting communication by utilizing a four-way optical switch and optical couplers to direct test light through the network.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If test light is inserted from the wiring rack to test the optical fiber network, then the optical fiber route can be tested, but communication is interrupted during the test
Solution Approach 1:
An optical coupler is introduced as an intermediary device that allows test light to be coupled into the optical fiber network without interrupting communication. The optical coupler acts as a mediator that separates the test function from the communication function, enabling both to operate simultaneously without interference.
Solution Approach 2:
The optical fiber network is segmented into communication paths and test paths. The optical coupler creates separate entry points for test light and communication light, allowing independent operation of testing and communication functions without mutual interference.
2Measurement precision
If optical path switching node is switched to test different sections, then comprehensive network testing is enabled, but communication interruption time is prolonged
Solution Approach 1:
The network testing function is segmented from the communication function through the use of optical couplers at different nodes. This allows test light to be injected at specific nodes to test specific sections without requiring switching that would interrupt communication, enabling parallel operation of testing and communication.
Solution Approach 2:
Optical couplers are pre-installed at optical path switching nodes, enabling test light to be coupled in without requiring node switching. This preliminary preparation eliminates the need to interrupt communication for testing by having the testing infrastructure ready in advance.
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
Enables comprehensive testing of optical fiber networks without disrupting communication, allowing for continuous service while identifying and addressing network issues.
Implementation Method 1
an optical coupler that couples test light
Data Source
AI summary
The present disclosure is an optical path switching node including: a four-way optical switch capable of switching to any one of a first connection state in which a first port and a second port are connected internally, and a third port and a fourth port are connected internally, a second connection state in which the first port and the third port are connected internally, and the second port and the fourth port are connected internally, and a third connection state in which the first port and the fourth port are connected internally, and the second port and the third port are connected internally; a first optical coupler that couples test light to an optical path from the first port in an external direction of the four-way optical switch; a second optical coupler that couples test light to an optical path from the second port in an external direction of the four-way optical switch; a third optical coupler that couples test light to an optical path from the third port in an external direction of the four-way optical switch; and a fourth optical coupler that couples test light to an optical path from the fourth port in an external direction of the four-way optical switch.