Elastic Client Interface for Tunable Optical Transponders
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Solution Overview
Problem
Current optical transponders have fixed-rate client interfaces, which restrict adaptive spectrum usage based on traffic capacity, leading to inefficient spectral utilization and potential traffic loss.
Innovation Solution
An elastic client interface for tunable optical transponders with variable rate optical transmitters and receivers, along with an electrical interface that matches optical capacity, and a processor for controlling optical capacity, enabling dynamic bandwidth and bit rate adjustments based on traffic demands.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If fixed rate client interfaces are used to ensure no traffic loss, then reliability is improved, but spectral utilization deteriorates
Solution Approach 1:
The patent implements variable rate optical transmitters and receivers that can dynamically adjust their data rate and bandwidth based on actual traffic capacity requirements. This allows the system to transition from fixed-rate operation to adaptive rate operation, optimizing spectral utilization while maintaining reliability through processor-controlled adjustments.
Solution Approach 2:
The system changes operational parameters (data rate, bandwidth, modulation format) based on traffic conditions. The processor monitors traffic capacity and adjusts optical interface parameters accordingly, allowing the same hardware to operate at different rates and bandwidths to match actual network needs rather than being locked to a fixed rate.
2Device complexity
If fixed rate interfaces are used to match optical capacity, then device complexity is reduced, but adaptability deteriorates
Solution Approach 1:
The patent introduces dynamic adjustability to the optical interface through variable rate transmitters and receivers controlled by a processor. This allows the system to adapt to different traffic capacities and spectrum requirements without requiring multiple fixed-rate interfaces, achieving versatility through controlled variability rather than hardware complexity.
Solution Approach 2:
The optical interface is designed to perform multiple functions by supporting variable data rates and bandwidths within a single interface configuration. The same optical transponder can adapt to different traffic capacities and spectrum allocations, making it universally applicable to various network conditions without requiring separate fixed-rate interfaces for each scenario.
3Loss of energy
If variable rate optical transmitters and receivers are implemented, then spectral efficiency is improved, but device complexity increases
Solution Approach 1:
The patent combines variable rate transmission and reception capabilities within a single optical interface system, along with integrated processor control. This merging of functions allows the system to achieve spectral efficiency through coordinated rate adaptation while managing complexity through integration rather than separate components for each function.
Solution Approach 2:
The processor monitors traffic capacity and provides feedback control to adjust the optical interface rate and bandwidth. This feedback mechanism enables automatic adaptation to traffic conditions, achieving spectral efficiency through intelligent control while managing complexity through automated decision-making rather than manual configuration.
Data Source
AI summary
There are provided an optical transponder having a first end and a second end, as well as an electric switch having the transponder. The transponder includes an optical interface, at the first end, having a variable rate optical transmitter and a variable rate optical receiver to respectively transmit and receive signals using at least one of different bandwidths and different bit rates. The transponder further includes an electrical interface, at the second end, having an electrical interface throughput matching an optical capacity of the optical interface. The transponder also includes a processor for controlling the optical capacity.