Optical Multiplexing Module Automatic Discovery via Power Modulation
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Solution Overview
Problem
Existing optical wavelength division multiplexing systems require complex manual configuration and incur high costs and failure rates due to the need for independent optical supervisory channels (OSC) for communication between multiplexers/demultiplexers, which cannot directly decode received signals.
Innovation Solution
An optical multiplexing and demultiplexing module with integrated power modulable laser transmitters and optical power detecting units for automatic discovery, enabling communication and power detection by modulating transmission power and sampling received optical power signals to acquire information about connection settings and abnormalities.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If an independent optical supervisory channel (OSC) unit is configured for each multiplexer/demultiplexer, then communication between multiplexers/demultiplexers is enabled, but cost and failure rate increase
Solution Approach 1:
The patent merges the communication function and power detection function into the existing multiplexer/demultiplexer device by integrating a power modulable laser transmitter and optical power detecting units. This eliminates the need for independent OSC units at each site, reducing device complexity while maintaining communication capability and system reliability through the unified structure.
2Ease of operation
If manual configuration of connections between multiplexers/demultiplexers is performed, then connection settings can be established, but configuration complexity increases
Solution Approach 1:
The patent implements self-service through automatic discovery function where multiplexers/demultiplexers automatically detect and establish connection relationships with neighboring devices. The power modulable laser transmitter and optical power detecting units enable automatic identification of connection status, eliminating manual configuration requirements and reducing configuration complexity while improving ease of operation.
Solution Approach 2:
The patent employs feedback mechanisms where optical power detecting units continuously monitor received signal power and provide feedback information about connection status. This feedback enables automatic adjustment and verification of connections, allowing the system to self-configure and adapt to changes in the optical network without manual intervention.
3Productivity
If received optical signals are transmitted to host for processing, then signal decoding is enabled, but processing efficiency decreases
Solution Approach 1:
The patent introduces an intermediary communication mechanism using power modulable laser transmitters that embed communication information directly in the optical signal power variations. This intermediary approach allows receiving terminals to extract and decode information directly from the optical signals before host processing, enabling parallel processing and improving overall system productivity while preserving all necessary information.
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
Simplifies configuration complexity, reduces costs and failure rates, and enables automatic discovery and adaptive connection management in wavelength division multiplexing systems, allowing signal reception at both demultiplexing and multiplexing terminals.
Implementation Method 1
an optical signal modulation module modulates a signal to be transmitted to transmitted light of a power modulable laser transmitter in manner of power amplitude modulation by the power modulable laser transmitter
Implementation Method 2
the signal reception portion samples and decodes a received optical power signal to acquire information, modulated on the transmission power of the laser
Data Source
AI summary
Disclosed are an optical multiplexing and demultiplexing module having an automatic discovery function, comprising a signal transmission portion and a signal reception portion. The signal transmission portion transmits information about the optical multiplexing and demultiplexing module by modulating transmission power of a laser. The signal reception portion samples and decodes the received optical power signal to acquire information about the other optical multiplexing and demultiplexing modules borne thereon. In configuring a wavelength division multiplexing transmission system, the device of the present disclosure may simplify the complexity of manual configuration, improve the accuracy of configuration, reduce the cost and failure rate in a solution in which an individual transceiver is used as an automatic discovery function, and adapt to different connection modes. Thereby at a receiving terminal, a signal can not only be received by a demultiplexing input terminal but also be received by various multiplexing input terminals.