Submarine Optical Transmission Device Control Signal Extraction
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Solution Overview
Problem
Submarine optical transmission devices without photo-electric conversion or optical amplification functions cannot generate response signals, making it difficult to confirm control execution in submarine optical communication systems.
Innovation Solution
An optical transmission device that extracts control information from a main signal and outputs a response signal in a different wavelength band, allowing control execution confirmation without requiring photo-electric conversion or optical amplification functions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a submarine optical transmission device does not have photo-electric conversion or optical amplification functions, then the device complexity is reduced, but the ability to generate response signals for control execution confirmation is lost
Solution Approach 1:
The patent introduces a dedicated control signal transmission path that acts as an intermediary between the main signal path and the control execution confirmation mechanism. Control signals are transmitted in a separate wavelength band from the main optical signal, allowing the device to receive and respond to control commands without requiring photo-electric conversion or optical amplification of the main signal. This intermediary path enables response signal generation while maintaining device simplicity.
Solution Approach 2:
The patent segments the optical signal into distinct wavelength bands: one for the main signal and another for control signals. By separating control signal transmission from the main signal path, the device can process control commands and generate response signals independently without needing complex photo-electric conversion or optical amplification functions for the main signal, thus reducing device complexity while maintaining control execution confirmation capability.
2Device complexity
If control signals are transmitted using the main signal path, then the system structure is simplified, but the main signal transmission quality deteriorates
Solution Approach 1:
The patent divides the optical spectrum into separate wavelength bands for main signal and control signal transmission. This segmentation allows both types of signals to coexist without mutual interference, maintaining main signal transmission quality while enabling control signal functionality. The separation is achieved through wavelength division multiplexing techniques.
Solution Approach 2:
The patent introduces a separate control signal path as an intermediary mechanism. Instead of modulating control signals onto the main signal path, a dedicated wavelength band is allocated for control signals, acting as an intermediary channel that enables control functionality without affecting main signal integrity.
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 confirmation of control execution in submarine optical communication systems even when the device lacks photo-electric conversion or optical amplification functions, ensuring reliable system operation.
Implementation Method 1
an extraction means for outputting a control signal from an optical signal including a main signal and a control signal, the control signal having a different wavelength band from the main signal
Data Source
AI summary
To generate, in an optical transmission device, a response signal corresponding to executed control even when said optical transmission device does not comprise one or both of a main signal photoelectric conversion function and a main signal optical amplification function, an optical transmission device comprises: an extraction unit that outputs, from a first optical signal including a main signal and a control signal, a signal including control information included in the control signal; a control unit that executes control on the basis of the control information; and a response signal output unit that outputs, according to the control, a response signal in a wavelength band different from the main signal.