Optical Transceiver Wavelength Division Multiplexing Management
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Solution Overview
Problem
Existing optical network systems face challenges in reliable management and monitoring, particularly in ensuring service level agreements (SLAs) and customer satisfaction due to complex network topologies and the need for costly demarcation equipment and interoperable solutions for managing user data and management data separately.
Innovation Solution
The integration of an optical transceiver with a power failure monitor, optical branching devices, and a dying-gasp signal mechanism allows for non-intrusive optical layer management and communication, eliminating the need for demarcation equipment by using a smart optical transceiver that can monitor and manage optical communications without impacting user data traffic, and enabling remote testing of optical links during power failures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional optical network systems use separate management data and user data channels with demarcation equipment, then management and monitoring can be performed, but device complexity and operational expenditures increase
Solution Approach 1:
The patent combines management data transmission with user data transmission by using the same optical channel and wavelength division multiplexing technology. The management data is transmitted on a dedicated wavelength (e.g., 1510nm) while user data is transmitted on other wavelengths, allowing both types of data to share the same physical infrastructure without requiring separate demarcation equipment, thereby reducing device complexity while maintaining management reliability
Solution Approach 2:
The optical transceiver is designed to handle both user data and management data functions simultaneously. The same optical interface and transmission medium are used for both purposes, making the system more universal and eliminating the need for specialized demarcation equipment, thus reducing overall system complexity
2Ease of operation
If demarcation equipment is deployed for optical layer management, then management capabilities are improved, but operational expenditures and deployment costs increase
Solution Approach 1:
The patent extracts the management data from the traditional separate management channel and integrates it into the user data optical channel using wavelength division multiplexing. This eliminates the need for physical demarcation equipment at customer premises, reducing the quantity of equipment required while maintaining full optical layer management capabilities through the integrated channel
3Quantity of substance
If optical transceiver integrates non-intrusive monitoring and management functions, then operational expenditures are reduced, but device complexity increases
Solution Approach 1:
The patent merges multiple functions (user data transmission, management data transmission, optical layer monitoring) into a single integrated optical transceiver device. By combining these functions and using wavelength division multiplexing to separate management and user data channels within the same device, the system reduces the total quantity of equipment while the integration complexity is managed through standardized protocols and modular design
4Reliability
If separate management and user data channels are used, then data separation is maintained, but response time during power failures increases
Solution Approach 1:
The patent implements a dying-gasp signal mechanism that allows the optical transceiver to send a predefined signal indicating imminent power failure before actual failure occurs. This preliminary action enables the network management system to detect and respond to failures faster by receiving advance warning through the integrated optical channel, reducing the loss of time during power failures while maintaining data separation through wavelength division multiplexing
Data Source
AI summary
An integrated optical transceiver includes an optical receiver that produces a first electrical signal at a reception electrical interface in response to a first optical signal, an optical transmitter that emits a second optical signal in response to a second electrical signal received at a transmission electrical interface, a first optical branching device that receives the first optical signal at an reception optical interface and to direct at least a portion of the first optical signal to the optical receiver, and a second optical branching device that directs the second optical signal to an transmission optical interface. The first optical branching device directs at least a portion of the first optical signal to the second optical branching device. The second optical branching device directs the portion of the first optical signal received from the first optical branching device to the transmission optical interface.