Optical Node Wavelength Conversion and Analog Compensation
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Solution Overview
Problem
Conventional techniques fail to effectively suppress signal quality deterioration in all-photonics networks due to the lack of wavelength conversion management.
Innovation Solution
A management apparatus and optical node apparatus that perform wavelength conversion through optical-analog-optical conversion, managing wavelength resources and usage states, and controlling wavelength conversion and analog compensation to maintain signal quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If wavelength conversion is performed through optical-analog-optical conversion in an all-photonics network, then path capacity and transmission flexibility are improved, but signal quality deterioration occurs due to noise figure accumulation
Solution Approach 1:
The patent implements feedback mechanisms where the management apparatus monitors signal quality metrics and noise figure characteristics across the optical network. Based on this feedback, the system dynamically adjusts wavelength conversion operations and analog compensation parameters to maintain signal quality while preserving path capacity benefits
Solution Approach 2:
The patent changes key parameters including noise figure characteristics through analog compensation, adjusts wavelength conversion settings based on signal quality metrics, and modifies transmission parameters to optimize the balance between path capacity and signal quality in the all-photonics network
2Adaptability or versatility
If multiple wavelength conversions are performed along a transmission path, then routing flexibility and network adaptability are improved, but noise figure characteristics deteriorate and signal quality decreases
Solution Approach 1:
The patent applies preliminary analog compensation before wavelength conversion operations and pre-calculates optimal wavelength conversion sequences to minimize noise figure accumulation. The management apparatus proactively adjusts transmission parameters before signal quality deteriorates, preventing rather than merely correcting noise issues
Solution Approach 2:
The patent employs composite signal processing techniques combining multiple wavelength conversion methods with analog compensation mechanisms. This composite approach integrates different conversion technologies and compensation strategies to achieve routing flexibility while mitigating the cumulative noise figure effect
3Device complexity
If conventional techniques are used without wavelength conversion management, then system complexity is reduced, but signal quality deterioration cannot be effectively suppressed
Solution Approach 1:
The patent introduces a management apparatus as an intermediary between the optical network elements and control systems. This intermediary coordinates wavelength conversion operations, monitors signal quality, and implements analog compensation without requiring complex modifications to individual network devices, thus maintaining relative system simplicity while improving signal quality
Solution Approach 2:
The management apparatus performs multiple functions including wavelength conversion coordination, signal quality monitoring, noise figure management, and analog compensation control. This universal approach consolidates multiple management tasks into a single system, avoiding the need for separate complex management mechanisms for each function
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
The solution effectively suppresses signal quality deterioration, ensuring path arrival and uniformizing arrival guarantees by averaging noise figure characteristics across the network.
Implementation Method 1
a wavelength conversion means for performing wavelength conversion on the received optical signal through optical-analog-optical conversion
Implementation Method 2
controlling analog compensation at the optical node apparatus, based on the managed path wavelength conversion information
Data Source
AI summary
A management apparatus (10) includes: a path management unit (11) configured to manage a wavelength resource that can be used in a path of a photonics network including a node that performs wavelength conversion through optical-analog-optical conversion and a usage state of the wavelength resource; a wavelength conversion management unit (12) configured to manage path wavelength conversion information that includes wavelength conversion at the node constituting the path; and a control unit (13) configured to control wavelength conversion at the node, based on the managed wavelength resource and usage state, and to control analog compensation at the node, based on the managed path wavelength conversion information.