Optical Signal Transmission Through Fluid Using Acoustic Waveguide
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Solution Overview
Problem
Existing methods for transmitting and receiving signals through fluids, such as liquids, face challenges with data rate limitations using acoustic signals and dispersion issues with optical signals, necessitating a more efficient approach that leverages the benefits of both while minimizing their disadvantages.
Innovation Solution
A method and system that utilize a pressure wave to create a waveguide in a fluid by changing its refractive index, allowing for the transmission and reception of optical signals, which can achieve higher data rates than acoustic signals while mitigating dispersion issues affecting optical signals.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If acoustic signals are used for transmission through fluid, then reliability of signal transmission is improved, but data rate is limited
Solution Approach 1:
The patent uses acoustic waves as an intermediary to create a refractive index modulation in the fluid, which then guides optical signals. The acoustic wave acts as a mediator that transforms acoustic energy into an optical waveguide structure, allowing optical signals to be transmitted through the fluid with both high reliability and high data rate.
Solution Approach 2:
The patent changes the refractive index parameter of the fluid by applying acoustic waves, creating regions of different refractive indices that form waveguides. This parameter change allows the fluid to dynamically control optical signal propagation, enabling high data rate transmission while maintaining reliability through the acoustic field control.
2Productivity
If optical signals are used for transmission through fluid, then data rate is improved, but dispersion issues occur
Solution Approach 1:
The acoustic wave serves as an intermediary that creates a controlled refractive index profile in the fluid, forming an acoustic waveguide. This waveguide structure confines and guides the optical signal, reducing dispersion effects while maintaining high data rate transmission capabilities of optical signals.
Solution Approach 2:
The patent creates localized regions of altered refractive index within the fluid using acoustic waves. These localized regions form waveguide channels that specifically guide optical signals along desired paths, improving signal quality by confining the optical energy and reducing dispersion while maintaining high data rate transmission.
3Productivity
If pressure wave is used to form waveguide, then optical signal transmission through fluid is enabled, but device complexity increases
Solution Approach 1:
The patent replaces complex mechanical optical waveguide structures with a fluid-based system controlled by acoustic waves. Instead of using solid-state waveguides or complex optical components, the system uses pressure waves to dynamically create and control the waveguide structure, simplifying the overall device while enabling optical transmission through fluid.
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 enables reliable and high-data-rate optical signal transmission through a fluid by forming a waveguide using a pressure wave, overcoming the limitations of both acoustic and optical signal propagation in fluid environments.
Implementation Method 1
using a pressure wave to cause a change in refractive index in the fluid, the change in refractive index causing a waveguide to be formed
Implementation Method 2
The change in refractive index may be an increase in refractive index sufficient to achieve total internal reflection of the optical signal within the waveguide
Implementation Method 3
A transducer system comprising one or more transducers may be used to generate the pressure wave
Data Source
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AI summary
According to a first aspect of the present invention, there is provided a method for transmitting and/or receiving an optical signal through a fluid, the method comprising: using a pressure wave to cause a change in refractive index in the fluid, the change in refractive index causing a waveguide to be formed; and transmitting and/or receiving the optical signal through the waveguide.