Wavelength Multiplexing System Dynamic Parameter Adjustment
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Solution Overview
Problem
Optical data transmission systems face challenges in maintaining high transmission quality due to stochastic variations in physical parameters of the transmission medium, leading to increased costs for adaptive compensation, especially at higher data rates.
Innovation Solution
A wavelength multiplexing system with a controllable transmitter and receiver that automatically adjusts transmission parameters, such as wavelength, data rate, and modulation format, based on real-time measurements of physical properties like differential group delay and optical signal-to-noise ratio, to optimize signal quality without adaptive compensation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If adaptive compensators are provided to compensate for stochastic variations in transmission parameters, then transmission quality is improved, but system cost increases substantially
Solution Approach 1:
The patent applies dynamics by making the transmission parameters (wavelength, data rate, modulation format) variable and adaptable rather than fixed. The system dynamically adjusts these parameters in response to measured transmission path conditions, allowing the transmission to adapt to stochastic variations without requiring complex adaptive compensators for each parameter.
Solution Approach 2:
The core of the invention lies in changing transmission parameters (wavelength, data rate, modulation format) based on measured values of transmission path properties. Instead of compensating for variations through complex hardware, the system changes the operational parameters of transmission to match current conditions, thereby maintaining transmission quality at lower cost.
2Reliability
If adaptive compensators are provided to compensate for stochastic variations in transmission parameters, then transmission quality is improved, but the adjustment range must be large leading to increased costs
Solution Approach 1:
The patent achieves multi-functionality by using a single measurement and control approach that can adapt multiple transmission parameters (wavelength, data rate, modulation format) simultaneously. This universal adaptation mechanism covers a wide range of transmission conditions without requiring separate compensators for each parameter, reducing overall system complexity and cost.
3Reliability
If compensators react rapidly to stochastic variations, then transmission quality is maintained, but reaction time requirements increase system cost
Solution Approach 1:
The patent implements a feedback mechanism where transmission path properties are continuously measured and used to adjust transmission parameters. This closed-loop control enables rapid adaptation to stochastic variations by continuously monitoring conditions and responding with appropriate parameter changes, maintaining transmission quality without requiring overly complex fast-reacting compensators.
Data Source
AI summary
A method for optical data transmission in a wavelength multiplexing system having at least two transmission channels of different wavelengths includes determining at least one value which is a measure of a physical property of an optical data transmission path of the wavelength multiplexing system; and automatically adjusting a transmission parameter of at least one of the transmission channels as a function of the determined at least one value.