Optical Communication Apparatus Light Splitting Phase Alignment
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Solution Overview
Problem
In wireless communication using light, the short wavelength of light makes phase alignment difficult due to the influence of phase differences in optical elements, leading to signal strength attenuation due to atmospheric turbulence.
Innovation Solution
A communication device that splits light into multiple beams and uses spatial optical communication units to transmit these beams, reducing phase differences at the receiving station through phase adjustment units.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If multiple communication stations transmit signals with aligned phases to increase directivity, then communication capacity and power efficiency are improved, but phase alignment becomes difficult due to short wavelength and phase differences in optical elements
Solution Approach 1:
The patent introduces a light splitting unit as an intermediary component that receives light from a single light output unit and divides it into multiple beams. This mediator ensures that all transmitted beams originate from the same source, thereby maintaining phase consistency without requiring complex phase alignment mechanisms across multiple independent light sources
Solution Approach 2:
The patent segments a single light beam into multiple beams using the light splitting unit. By dividing one coherent light source into multiple paths rather than using multiple independent sources, the system maintains phase alignment while achieving the necessary beam diversity for improved communication capacity
2Ease of operation
If light is transmitted through atmospheric turbulence, then wireless communication using light is achieved, but signal strength significantly attenuates
Solution Approach 1:
The patent divides a single light beam into multiple beams that can be transmitted through different atmospheric paths. This segmentation allows the system to overcome atmospheric turbulence by distributing the signal across multiple channels, reducing the impact of turbulence on any single beam and thereby minimizing overall signal attenuation
Solution Approach 2:
The patent combines multiple split beams at the receiving end to reconstruct the original signal with improved strength. By merging the beams that have traversed different atmospheric paths, the system compensates for turbulence-induced attenuation and achieves reliable wireless optical communication
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 reduces phase differences and attenuates signal strength in wireless communication using light, enhancing communication reliability and efficiency.
Implementation Method 1
a light splitting unit for splitting the light output by the light output unit into a plurality of split beams
Data Source
AI summary
A communication device includes: a light output unit for outputting light; a light splitting unit for splitting the light output by the light output unit into a plurality of split beams; and a plurality of spatial optical communication units provided in correspondence to the plurality of split beams, wherein the spatial optical communication units respectively transmit a corresponding split beam which is input from the light splitting unit to a partner communication device across space.