Cluster Light Source Optical Multiplexer Splitter

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Solution Overview

Problem

Current multi-wavelength light sources deployed in optical communication systems face challenges in stability, flexibility, and cost-effectiveness, particularly due to the need for mass deployment and the high cost of replacing entire modules when individual wavelengths are damaged.

Innovation Solution

The proposed solution is a cluster light source system that utilizes a single light source, optical multiplexer, optical splitter, and amplifier array to generate multiple multi-wavelength continuous-wave lights, allowing for flexible capacity expansion and wavelength-level backup, thereby reducing costs and improving stability.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If multiple multi-wavelength light sources are deployed to meet communication capacity requirements, then the communication capacity is improved, but the cost and complexity of deployment and maintenance increase

Engineering Contradiction:
Improvecommunication capacityVSAvoiddeployment and maintenance complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The patent divides a single light source into multiple independent wavelength channels through optical splitting. The optical splitter divides the light from one laser source into multiple wavelength channels, each of which can be independently modulated and transmitted. This segmentation allows one physical light source to serve multiple communication channels, reducing the total number of light sources needed while maintaining high communication capacity.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent creates a universal light source system where a single multi-wavelength light source can serve multiple communication channels and functions. The light source is designed to generate multiple wavelengths that can be distributed to different communication links, making it a multi-functional component that reduces overall system complexity while supporting high capacity communication.

Inventive Principle:
Principle #6Universality (Multi-functionality)

2Reliability

If entire multi-wavelength light source modules are replaced when individual wavelengths are damaged, then the reliability is maintained, but the cost and loss of time increase

Engineering Contradiction:
Improvesystem reliabilityVSAvoidreplacement time
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

The patent segments the light source into independent wavelength channels that can be individually monitored and replaced. Each wavelength channel operates independently through optical splitting, so damage to one wavelength does not affect others. This allows for selective replacement of only the damaged wavelength component rather than the entire module, reducing replacement time and cost while maintaining system reliability.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent enables selective discarding of only the damaged wavelength channel while recovering and continuing to use the functional wavelength channels. The modular design allows the damaged portion to be replaced while the remaining wavelengths continue to serve their communication functions, minimizing loss of time and resources.

Inventive Principle:
Principle #34Discarding and recovering

3Device complexity

If a single light source is used to generate multiple wavelengths through optical splitting, then the cost and structure are simplified, but the stability and uniformity of performance may be compromised

Engineering Contradiction:
Improvestructure simplicityVSAvoidperformance stability
Core Design Contradiction:
Device complexityVSReliability

Solution Approach 1:

The patent incorporates feedback mechanisms to monitor and adjust the performance of each wavelength channel. By monitoring the output characteristics of each wavelength and providing feedback for adjustment, the system maintains stable and uniform performance across all channels despite using a single light source. This feedback control ensures that performance variations are compensated for, maintaining reliability while keeping the structure simple.

Inventive Principle:
Principle #23Feedback

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 approach enables the production of a larger quantity of multi-wavelength light sources with uniform and stable performance, while also simplifying the structure and reducing costs, thus addressing the limitations of existing technologies.

Implementation Method 1

The optical multiplexer is configured to combine the plurality of single-wavelength continuous-wave light into one first multi-wavelength continuous-wave light

Methodology Applied
Scientific EffectOptical multiplexing:

Implementation Method 2

The first optical splitter is configured to perform power beam splitting on the first multi-wavelength continuous-wave light, to output a plurality of second multi-wavelength continuous-wave light

Methodology Applied
Scientific EffectOptical beam splitting:

Implementation Method 3

The optical amplifier array is used to amplify the plurality of second multi-wavelength continuous-wave light, to output a plurality of third multi-wavelength continuous-wave light

Methodology Applied
Scientific EffectOptical amplification:

Data Source

PatentUS12323189B2Cluster light source and method for generating cluster light source
Publication Date: 2025.06.03 HUAWEI TECH CO LTD
  • US12323189B2 patent drawing
  • US12323189B2 patent drawing
  • US12323189B2 patent drawing

AI summary

A cluster light source and a method for generating a cluster light source is provided. A multi-wavelength cluster light source includes: a light source, an optical multiplexer, an optical splitter, and an optical amplifier array. The light source outputs a plurality of single-wavelength continuous-wave light having different wavelengths in parallel. The optical multiplexer combines the plurality of single-wavelength continuous-wave light into one multi-wavelength continuous-wave light. The optical splitter performs power beam splitting on the multi-wavelength continuous-wave light, to output a plurality of multi-wavelength continuous-wave light. The optical amplifier array amplifies the plurality of multi-wavelength continuous-wave light, to output a plurality of other multi-wavelength continuous-wave light. Optionally, the cluster light source further includes a backup light source and an optical switch array.