Dynamic Power Optimization in Fiber-Optic Transceivers

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Solution Overview

Problem

Fiber-optic communication systems face challenges in maintaining optimal power levels during link-on events, leading to poor connection or bad communication quality due to inefficiencies in optical transceivers, particularly in high-temperature environments, resulting in increased operational current and reduced lifespan.

Innovation Solution

A method for dynamic power optimization in fiber-optic communication systems involves a first optical transceiver transmitting a power correction request packet to a second transceiver, acquiring a power compensation value based on actual and expected receiving powers, and adjusting the transmitting power to minimize power waste, ensuring normal communication while reducing heat and prolonging device lifespan.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Duration of action of stationary object

If the optical transmitting power is reduced to decrease operational current and heat, then the lifespan of light devices is prolonged, but the communication quality may deteriorate

Engineering Contradiction:
Improvelifespan of light devicesVSAvoidcommunication quality
Core Design Contradiction:
Duration of action of stationary objectVSReliability

Solution Approach 1:

The patent implements dynamic adjustment of optical transmitting power based on real-time link quality monitoring. The system transitions from static maximum power transmission to dynamic power levels that adapt to connection conditions, allowing reduced power (and thus reduced heat and extended lifespan) when link quality is good, while maintaining reliability when quality deteriorates

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The system employs feedback mechanisms where the receiving end monitors optical signal quality and sends control signals back to the transmitting end. This feedback loop enables the transmitting end to adjust its optical power dynamically, ensuring communication quality is maintained while optimizing power consumption and device lifespan

Inventive Principle:
Principle #23Feedback

2Reliability

If the optical transmitting power is increased to ensure normal communication, then the communication quality is maintained, but the operational current increases and heat is generated

Engineering Contradiction:
Improvecommunication qualityVSAvoidoperational current
Core Design Contradiction:
ReliabilityVSUse of energy by moving object

Solution Approach 1:

The system dynamically adjusts optical transmitting power based on actual link conditions rather than operating at constant maximum power. When link quality is good, power is reduced to minimize energy consumption and heat generation. When quality deteriorates, power is increased only to the extent necessary to maintain communication, avoiding unnecessary energy waste

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The patent changes the operating parameters of the optical transmitting device dynamically. By adjusting the optical power parameter in response to link quality measurements, the system optimizes the balance between communication reliability and energy consumption, ensuring minimum necessary power usage for maintaining quality

Inventive Principle:
Principle #35Parameter changes

3Reliability

If the optical transmitting power is increased to compensate for poor connection, then the connection quality improves, but the power consumption increases

Engineering Contradiction:
Improveconnection qualityVSAvoidpower consumption
Core Design Contradiction:
ReliabilityVSLoss of energy

Solution Approach 1:

The system implements dynamic power adjustment where transmitting power is increased only temporarily and only to the extent necessary to compensate for poor connection conditions. Once link quality improves, power is reduced again, minimizing overall energy loss while maintaining connection quality when needed

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The patent dynamically changes the optical power parameter in response to connection quality measurements. When poor connection is detected, power is increased to restore quality. The system continuously monitors and adjusts this parameter, ensuring power consumption is minimized while maintaining acceptable connection quality

Inventive Principle:
Principle #35Parameter changes

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 effectively optimizes power usage by adjusting optical transmitting power based on receiving power discrepancies, reducing power consumption and extending the lifespan of optical transceivers while maintaining communication quality.

Implementation Method 1

Using optical fibers to transmit optical signals from one place to another

Methodology Applied
Scientific EffectOptical signal transmission: Optical Fibre

Data Source

PatentEP3886341B1Method of performing dynamic power optimization in fiber-optic communication system and related fiber-optic communication system
Publication Date: 2024.11.06 MOXA INC
  • EP3886341B1 patent drawingFigure 1A
  • EP3886341B1 patent drawingFigure 1B
  • EP3886341B1 patent drawingFigure 2

AI summary

A fiber-optic communication system (100, 100) includes a first optical transceiver (100A) and a second optical transceiver (100B). First, the first optical transceiver (100A) is configured to transmit signals to the second optical transceiver (100B) using an optical transmission power having an initial value. When the optical receiving power inputted into the second optical transceiver (100B) is larger than the expected input power of the second optical transceiver (100B), a power compensation value is acquired according to the optical receiving power and the expected input power. The first optical transceiver (100A) is configured adjust its optical transmission power according to the power compensation value and then transmit signals to the second optical transceiver (100B) using the adjusted optical transmission power.