Dual Receiver Optical Splitter for Signal Separation
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Solution Overview
Problem
Fiber optic communication systems face limitations such as Composite Second Order (CSO) and Composite Triple Beat (CTB) distortions, Cross Phase Modulation (XPM), Stimulated Raman Scattering (SRS), and optical dispersion, especially in dense metropolitan areas where maintaining adequate frequency separation between broadcast and narrowcast signals is challenging, leading to signal attenuation and dispersion issues.
Innovation Solution
An optical communication system employing multiple dual receivers with a splitter to separate narrowcast and broadcast signals, including a controller that dynamically adjusts attenuators and filters based on optical monitor voltage and modulation index to maintain signal separation, allowing for remote adjustments of filter cutoff frequencies and gain settings.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of moving object
If optical transmission power is increased to push signals down longer fibers, then transmission distance is improved, but signal attenuation and distortion increase
Solution Approach 1:
The patent implements dynamic adjustment of optical parameters including real-time modulation index control and adaptive filtering. The system dynamically modifies signal characteristics based on transmission conditions to maintain optimal signal quality over varying distances, resolving the contradiction between transmission distance and signal quality.
Solution Approach 2:
The system changes optical parameters such as modulation index, optical power levels, and frequency separation dynamically during transmission. By adjusting these parameters in real-time, the system optimizes the balance between transmission distance and signal quality, preventing attenuation and distortion from degrading performance.
2Reliability
If frequency separation between broadcast and narrowcast signals is increased to reduce interference, then signal separation is improved, but data transfer rate decreases
Solution Approach 1:
The patent employs dynamic frequency separation adjustment where the system adapts the frequency spacing between broadcast and narrowcast signals based on real-time transmission conditions. This dynamic approach maintains adequate separation to reduce interference while optimizing the overall data transfer rate, resolving the contradiction between signal separation and productivity.
Solution Approach 2:
The system dynamically modifies frequency separation parameters and other transmission parameters to optimize the trade-off between signal separation and data transfer rate. By changing these parameters in response to transmission conditions, the system achieves both adequate separation and high data transfer rates.
3Length of moving object
If optical power is increased to overcome attenuation, then transmission distance is improved, but non-linear distortions increase
Solution Approach 1:
The patent implements feedback mechanisms that monitor transmission quality and distortions in real-time. Based on this feedback, the system dynamically adjusts optical power levels and signal parameters to maintain optimal performance over long distances while minimizing non-linear distortions, resolving the contradiction between transmission distance and distortion.
Solution Approach 2:
The system dynamically adjusts optical power and signal characteristics during transmission to prevent non-linear distortions. By adapting power levels in real-time rather than maintaining constant high power, the system achieves long transmission distances while minimizing distortions caused by high optical power.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This solution effectively maintains signal separation and reduces crosstalk, improving data transfer rates and reducing distortions in fiber optic communications by dynamically managing optical power and frequency separation.
Implementation Method 1
a splitter to separate one or more narrowcast signals from a broadcast signal
Implementation Method 2
the narrowcast receiver including an attenuator and a filter, and a controller including logic to dynamically monitor and adjust the attenuator to maintain separation between the broadcast and narrowcast signals
Implementation Method 3
the narrowcast receiver including an attenuator and a filter
Implementation Method 4
The optical-to-electrical converter may include and/or involve a splitter to separate one or more narrowcast signals from a broadcast signal
Data Source
AI summary
An optical-to-electrical converter may include and/or involve a splitter to separate one or more narrowcast signals from a broadcast signal, at least one broadcast signal receiver to receive the broadcast signal separated from one or more narrowcast signals, at least one narrowcast signal receiver to receive the narrowcast signal separated from the broadcast signal, the narrowcast receiver including an attenuator and a filter, and a controller including logic to dynamically monitor and adjust the attenuator to maintain separation between the broadcast and narrowcast signals.