Optical Module Performance Optimization via Bit Error Feedback

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Solution Overview

Problem

Current optical modules in complex optical networks face challenges in optimizing performance, particularly in achieving high sensitivity and optical signal-to-noise ratio (OSNR), as existing methods like host optimization and equalization fail to adequately improve bit error rates.

Innovation Solution

An optical module and host system that converts optical signals into electrical signals, processes them based on set control parameters, and adjusts these parameters using bit error information to optimize performance, incorporating components like optical receivers, connectors, and processors to adapt to network conditions.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If host optimization based on 0/1 bit error information is used, then bit error rate optimization is attempted, but performance is still poor

Engineering Contradiction:
Improvebit error rateVSAvoidoptimization complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent implements a feedback mechanism where the host sends bit error information to the optical module, and the optical module adjusts its control parameters based on this feedback. This closed-loop feedback system enables continuous optimization of performance parameters based on actual transmission quality, resolving the limitation of open-loop host optimization alone.

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The patent introduces an intermediary processing mechanism where the optical module's processor acts as a mediator between the host and the optical receiver. The processor receives bit error information from the host and automatically adjusts control parameters of the optical receiver, eliminating the need for complex host-side optimization algorithms while achieving better performance.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Reliability

If equalizer compensation for channel distortion is used, then channel distortion is compensated, but overall performance remains insufficient

Engineering Contradiction:
Improvesignal qualityVSAvoidprocessing complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent dynamically changes control parameters (such as equalizer coefficients, threshold values, and dispersion compensation parameters) based on bit error information feedback. This allows the system to adapt to varying channel conditions and optimize signal quality without requiring overly complex fixed-structure processing.

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The patent transforms static equalization and compensation settings into dynamic, adjustable parameters. The control parameters are continuously optimized based on real-time bit error information, enabling the system to adapt to changing network conditions and achieve better performance than static compensation methods.

Inventive Principle:
Principle #15Dynamics

3Reliability

If multiple optimization technologies are used at sending and receiving ends, then performance optimization is attempted, but sensitivity and OSNR requirements are not met

Engineering Contradiction:
Improvesensitivity and OSNRVSAvoidsystem complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent enables the optical module to self-optimize its performance by automatically adjusting its own control parameters based on bit error information. This self-service mechanism eliminates the need for complex coordinated optimization at both sending and receiving ends, as the receiving end autonomously adapts to achieve required sensitivity and OSNR performance.

Inventive Principle:
Principle #25Self-service

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 enhances the optical module's performance by dynamically adjusting control parameters, such as threshold, equalization, and electronic dispersion compensation, leading to improved bit error rates and overall module efficiency in complex network environments.

Implementation Method 1

an optical receiver, configured to receive an optical signal from an optical network, convert the optical signal into a first electrical signal

Methodology Applied
Scientific EffectOptical-to-electrical conversion: Photoelectric Effect

Data Source

PatentUS9379811B2Method and device for optimizing performance of an optical module
Publication Date: 2016.06.28 HUAWEI TECH CO LTD
  • US9379811B2 patent drawing
  • US9379811B2 patent drawing
  • US9379811B2 patent drawing

AI summary

Embodiments of the present invention provide a method and device for optimizing performance of an optical module. The optical module includes: an optical receiver, configured to receive an optical signal from an optical network, convert the optical signal into a first electrical signal, and process the first electrical signal according to a set control parameter for performance optimization, so as to obtain a second electrical signal; a connector, configured to send the second electrical signal obtained by the optical receiver to a host connected to the optical module, so that the host obtains bit error information according to the second electrical signal, and configured to receive the bit error information delivered by the host; and a processor, configured to adjust, according to the bit error information of the connector, the control parameter for performance optimization of the optical receiver.