Pluggable Optical Transceivers With Integrated EDC and FEC
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Solution Overview
Problem
Current optical transceivers, compliant with Multi-Source Agreements (MSAs), lack integrated functionality for advanced performance monitoring, optical layer operations, administration, maintenance, and provisioning, as well as electronic dispersion compensation and forward error correction, which limits their performance and requires additional equipment for carrier-grade applications.
Innovation Solution
Incorporating electronic dispersion compensation circuitry and forward error correction within the optical transceiver, separate from the host device, along with management interface circuitry to provide data related to dispersion compensation and error correction, while maintaining compatibility with existing MSA specifications.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If optical transceivers are designed to be MSA-compliant with standardized specifications, then interoperability and ease of manufacture are improved, but advanced functionality such as integrated electronic dispersion compensation and forward error correction is limited
Solution Approach 1:
The patent segments the optical transceiver functionality by separating MSA-compliant standardized interfaces from advanced functionality modules. The electronic dispersion compensation (EDC) and forward error correction (FEC) are implemented as separate integrated circuits that can be selectively activated, allowing the transceiver to maintain MSA compliance while optionally providing carrier-grade features when needed.
Solution Approach 2:
The patent creates a universal optical transceiver platform that can operate in multiple modes: basic MSA-compliant mode for standard interoperability, and enhanced mode with integrated EDC and FEC for carrier-grade applications. This multi-functionality allows a single device to serve both enterprise and carrier market segments.
2Reliability
If electronic dispersion compensation and forward error correction are integrated within the optical transceiver, then carrier-grade performance is achieved, but device complexity increases
Solution Approach 1:
The patent merges previously separate functions (EDC, FEC, and optical transceiver operations) into a single integrated device. The EDC and FEC circuits are combined with the optical transceiver components to form one unified module, eliminating the need for external transponders and reducing system complexity despite adding internal functionality.
Solution Approach 2:
The optical transceiver performs self-service by integrating EDC and FEC functions internally, allowing it to automatically compensate for dispersion and correct errors without requiring external processing equipment. This self-contained approach improves reliability while managing complexity through functional integration.
3Measurement precision
If management interface circuitry is added to provide data related to dispersion compensation and error correction, then performance monitoring capability is enhanced, but device complexity increases
Solution Approach 1:
The patent implements feedback mechanisms through management interface circuitry that monitors and reports performance parameters related to EDC and FEC operations. This feedback enables real-time performance monitoring and optimization while keeping the additional circuitry minimal by leveraging existing MSA-compliant management interfaces.
4Adaptability or versatility
If optical transceivers are extended from short interconnects to metro and core networks, then application versatility is improved, but requirements for advanced functionality increase
Solution Approach 1:
The patent creates a dynamic optical transceiver that can adapt its functionality based on application requirements. The device can operate in basic mode for short interconnects and automatically activate advanced EDC and FEC functions when deployed in metro or core network applications, providing the necessary performance enhancement for extended reach.
Data Source
AI summary
An optical transceiver configured to operate in a host device includes an electrical interface communicatively coupled to the host device to interface electrically with the host device, wherein the optical transceiver is compliant with a Multi-Source Agreement (MSA) which is supported by the host device; optical transceiver components communicatively coupled to the electrical interface, wherein the optical transceiver components are configured to optically interface signals with a second optical transceiver to form an optical link; and electronic dispersion compensation circuitry communicatively coupled to the optical transceiver components and configured to electronically compensate for optical fiber chromatic and/or polarization mode dispersion associated with the optical link, separate and independent from the host device.