Optical Transceiver Wavelength Auto-Setting via WDM Signal Exchange
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Solution Overview
Problem
The cumbersome and time-consuming process of manually setting wavelengths for optical transceivers in WDM-based optical communication systems, which are often located remotely, leads to high installation and maintenance costs.
Innovation Solution
An optical transceiver that automatically sets wavelengths by receiving wavelength information through a multiplexer/demultiplexer, using a controller to identify reception and transmission wavelengths based on a pre-stored lookup table, and generating optical response signals with auxiliary management and control channels.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If manual wavelength setting is used for optical transceivers, then wavelength configuration can be performed, but installation and maintenance costs increase and time consumption increases
Solution Approach 1:
The optical transceiver automatically performs wavelength setting by receiving optical transmission signals, extracting wavelength information, and configuring its transmission and reception wavelengths without administrator intervention. The controller autonomously completes the entire wavelength configuration process, making the system self-sufficient in wavelength management.
Solution Approach 2:
The system performs wavelength setting automatically during the initial connection phase before actual data transmission begins. By completing wavelength configuration in advance through automatic signal exchange and information extraction, the system eliminates the need for subsequent manual adjustments and administrator visits.
2Ease of operation
If manual wavelength setting is used for optical transceivers, then wavelength configuration can be performed, but installation and maintenance costs increase
Solution Approach 1:
The optical transceiver autonomously configures its wavelength settings by automatically receiving and processing optical transmission signals. The controller extracts wavelength information from received signals and independently determines appropriate transmission and reception wavelengths, eliminating the need for paid administrator services during installation and maintenance.
Solution Approach 2:
The patent replaces manual mechanical configuration processes with an automated optical-electrical-optical conversion system. The controller uses photoelectric conversion to receive optical signals, processes the wavelength information electronically, and automatically configures the wavelength settings, substituting human manual operations with an automated electronic control system.
3Extent of automation
If automatic wavelength setting is implemented, then administrator visits are eliminated, but device complexity increases
Solution Approach 1:
The controller serves multiple functions: it manages wavelength configuration, processes optical transmission signals, extracts wavelength information, and controls the optical modulator. By consolidating these diverse functions into a single controller unit, the system achieves automatic wavelength setting without proportionally increasing overall device complexity.
Solution Approach 2:
The patent introduces an auxiliary management and control channel as an intermediary mechanism for wavelength information exchange. This dedicated control channel facilitates automatic wavelength configuration by providing a structured pathway for transmitting wavelength settings and confirmation signals between transceivers, simplifying the automation process.
4Productivity
If wavelength information is transmitted through optical signals, then communication efficiency improves, but signal processing complexity increases
Solution Approach 1:
The system replaces complex manual wavelength configuration procedures with automated photoelectric conversion and electronic signal processing. The controller automatically converts received optical signals to electrical signals, extracts wavelength information through electronic processing, and configures wavelength settings, eliminating manual intervention and improving configuration efficiency.
Solution Approach 2:
The optical transceiver implements a feedback mechanism where the controller monitors received optical transmission signals, extracts wavelength information, and automatically adjusts transmission and reception wavelengths based on the extracted data. This closed-loop feedback system ensures accurate wavelength configuration while maintaining communication efficiency.
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 automatic wavelength setting without administrator visits, reducing costs and improving convenience while ensuring compatibility and reducing system construction costs.
Implementation Method 1
a receiver configured to receive an optical transmission signal including wavelength information from another optical transceiver
Implementation Method 2
a transmitter configured to generate and output an optical response signal including the reception wavelength information and the transmission wavelength information
Data Source
AI summary
Provided is an optical transceiver including: a receiver configured to receive an optical transmission signal including wavelength information from another optical transceiver through a multiplexer/demultiplexer connected to the receiver; and a controller configured to identify a reception wavelength for communication with the other optical transceiver and to determine a wavelength corresponding to the reception wavelength as a transmission wavelength for communication with the other optical transceiver, based on the wavelength information included in the optical transmission signal.