Pluggable Optical Transceivers With Integrated FEC and G.709 Framing
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Solution Overview
Problem
Current optical transceivers, compliant with multi-source agreements (MSAs), lack integrated framing and forward error correction (FEC) capabilities, which limits their performance and requires external equipment for advanced functions like G.709 wrapping and optical layer operations, administration, maintenance, and provisioning (OAM&P).
Innovation Solution
Incorporating circuitry within the optical transceivers to provide framing, FEC, and OAM&P functions, while maintaining compatibility with existing MSA specifications, allowing these functions to be performed transparently to the host device and enabling carrier-grade performance without additional hardware.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If optical transceivers are designed to be MSA-compliant with standardized mechanical and electrical characteristics, then interoperability and manufacturing flexibility are improved, but advanced functionality such as integrated framing and FEC is lost
Solution Approach 1:
The patent combines MSA-compliant transceiver functionality with integrated framing and FEC capabilities into a single device. The optical transceiver module incorporates both the standardized interface components and the advanced signal processing functions, eliminating the need for separate external equipment while maintaining interoperability through standardized mechanical and electrical interfaces.
Solution Approach 2:
The optical transceiver is designed to perform multiple functions: standard optical signal transmission/reception according to MSA specifications, plus integrated framing, FEC encoding/decoding, and OAM&P capabilities. This multi-functional design allows a single device to replace what would traditionally require multiple separate components, achieving both interoperability and advanced functionality.
2Reliability
If external equipment is used for framing and FEC functions, then advanced functionality is achieved, but device complexity and system cost increase
Solution Approach 1:
The patent merges the framing and FEC functions into the optical transceiver itself rather than using external equipment. The transceiver includes integrated circuitry for G.709 framing, FEC encoding at the transmitter, and FEC decoding at the receiver, all within the same housing as the optical components. This integration maintains carrier-grade performance while reducing system complexity.
3Ease of manufacture
If MSA specifications tightly define transceiver characteristics, then manufacturing and inventory control are streamlined, but advanced optical performance is limited
Solution Approach 1:
The patent segments the transceiver functionality into standardized interface components (compliant with MSA specifications for easy manufacturing) and advanced functional components (integrated framing, FEC, OAM&P). The standardized mechanical, electrical, and optical interfaces allow for streamlined manufacturing and inventory control, while the integrated advanced functions provide enhanced optical performance for metro and core network applications.
Data Source
AI summary
Integrated performance monitoring (PM); optical layer operations, administration, maintenance, and provisioning (OAM&P); alarming; amplification, and the like is described in optical transceivers, such as multi-source agreement (MSA)-defined modules. A pluggable optical transceiver defined by an MSA agreement can include advanced integrated functions for carrier-grade operation which preserves the existing MSA specifications allowing the pluggable optical transceiver to operate with any compliant MSA host device with advanced features and functionality, such as Forward Error Correction (FEC), framing, and OAM&P directly on the pluggable optical transceiver. The advanced integrated can be implemented by the pluggable optical transceiver separate and independent from the host device.