Triplex Module for Simultaneous Data and Power Transmission

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Solution Overview

Problem

Existing optical fiber communication systems require separate cables for data and power transmission, increasing costs and material usage, and are prone to errors during uplink transmission due to simultaneous power supply and data transfer.

Innovation Solution

The use of triplex modules that transmit data at one wavelength, receive data at another wavelength, and transmit power over a third distinct wavelength within a single optical waveguide, allowing independent data transfer and power supply through a single optical waveguide without structural changes to existing waveguides.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If separate cables are used for data and power transmission, then transmission reliability is improved, but material usage and installation costs increase

Engineering Contradiction:

Improvetransmission reliabilityVSAvoidmaterial usage

Core Design Contradiction:

ReliabilityVSQuantity of substance

Solution Approach 1:

The patent combines data transmission and power transmission into a single optical cable by using different wavelengths (1310nm for data, 808nm or 940nm for power) within the same fiber optic infrastructure. This merging eliminates the need for separate cables while maintaining transmission reliability through wavelength division multiplexing technology.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The optical cable is designed to perform multiple functions simultaneously: it transmits both data signals and power signals through the same physical medium. The single cable serves as both a communication channel and a power delivery system, reducing material usage without compromising the reliability of either function.

Inventive Principle:

Principle #6Universality (Multi-functionality)

2Reliability

If separate cables are used for data and power transmission, then transmission reliability is improved, but installation costs increase

Engineering Contradiction:

Improvetransmission reliabilityVSAvoidinstallation costs

Core Design Contradiction:

ReliabilityVSEase of manufacture

Solution Approach 1:

By merging data and power transmission into a single cable, the patent reduces installation complexity and costs. Only one cable needs to be laid and connected instead of two separate cables, while the reliability is maintained through the use of dedicated wavelengths for each function within the same infrastructure.

Inventive Principle:

Principle #5Merging (Combining)

3Device complexity

If uplink transmission carries both power supply and data, then device complexity is reduced, but transmission errors increase

Engineering Contradiction:

Improvedevice complexityVSAvoidtransmission accuracy

Core Design Contradiction:

Device complexityVSReliability

Solution Approach 1:

The patent segments the uplink transmission by separating data transmission (1310nm wavelength) from power transmission (808nm or 940nm wavelength) even though both travel through the same cable. This segmentation prevents interference and errors by assigning distinct wavelengths to different functions, maintaining transmission accuracy while using a single cable infrastructure.

Inventive Principle:

Principle #1Segmentation

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 reduces raw material usage and installation costs, enhances transmission reliability by ensuring independent data and power supply, and eliminates the need for additional cables, while maintaining high-intensity and coherent laser beam properties for effective power and data transmission.

Implementation Method 1

a high power laser source for emitting a first laser beam at a first wavelength

Methodology Applied

Scientific EffectLaser: Laser

Implementation Method 2

a low power laser source for emitting a second laser beam at a second wavelength

Methodology Applied

Scientific EffectLaser: Laser

Implementation Method 3

an optical waveguide which connects the base station to the remote station

Methodology Applied

Scientific EffectOptical waveguide: Waveguide (optics)

Implementation Method 4

an optical interface for simultaneously coupling the first and the second laser beams into the optical waveguide

Methodology Applied

Scientific EffectOptical coupling:

Implementation Method 5

The light is then converted back into electrical energy in the electronic module, with the help of a photovoltaic converter

Methodology Applied

Scientific EffectPhotoelectric conversion: Photoelectric Effect

Data Source

PatentUS9755745B2Device for simultaneous data and power transmission over an optical waveguide

Publication Date: 2017.09.05 SIEMENS ENERGY GLOBAL GMBH & CO KG

AI summary

A device and a method for simultaneous full-duplex data and power transmission over a single optical waveguide, which connects a base station and a remote station. At the base station a high power laser source emits a first laser beam for carrying power and a base station low power laser source emits a second laser beam for carrying data over the optical waveguide from the base station to the remote station. An optical interface couples the laser beams into the optical waveguide. The laser beams are received at corresponding first and second remote station optical receivers. At the remote station, a third laser beam is emitted by a remote station low power laser source for carrying data from the remote station to the base station and the beam is received at the base station optical receiver. The wavelengths of the first, second and the third laser beams are distinct.