Twisted Light Optical Communication System Using Orbital Angular Momentum
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Solution Overview
Problem
Current wireless communication systems face challenges in providing high bandwidth and efficient data transmission, especially with the increasing demand for mobile data and broadband access, as they rely on traditional methods that require electrical return paths and are prone to signal loss over distance.
Innovation Solution
The development of a guided wave communication system that uses electromagnetic waves bound to a transmission medium, such as wires or dielectric materials, which can propagate without an electrical return path and with reduced signal loss, utilizing couplers to launch and receive these waves along the medium.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional wireless communication methods are used, then electrical return paths are required, but signal loss increases over distance
Solution Approach 1:
The patent replaces traditional electrical signal transmission that requires return paths with electromagnetic wave propagation bound to transmission media. This substitution eliminates the need for electrical return paths and significantly reduces signal loss over distance by utilizing guided electromagnetic waves instead of conventional electrical currents
Solution Approach 2:
The patent introduces transmission media (wires or dielectric materials) as intermediaries to carry electromagnetic waves. These media serve as mediators that bind the electromagnetic waves, enabling long-distance transmission without the signal loss problems associated with traditional wireless methods that require electrical return paths
2Productivity
If traditional wireless infrastructure is deployed, then bandwidth capacity is limited, but infrastructure complexity increases
Solution Approach 1:
The patent enables transmission media to serve multiple functions: guiding electromagnetic waves for communication, providing structural support, and eliminating the need for separate return paths. This multi-functionality increases bandwidth capacity while reducing infrastructure complexity by consolidating multiple requirements into a single transmission medium
Solution Approach 2:
The patent transitions from two-dimensional electrical current flow requiring return paths to three-dimensional electromagnetic wave propagation bound to transmission media. This dimensional change enables higher bandwidth capacity through multiple propagation modes while simplifying infrastructure by eliminating the need for paired conductors
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 system enables efficient data transmission over long distances with reduced propagation loss, supporting high-bandwidth communication without the need for electrical return paths, thus addressing the limitations of traditional wireless communication systems.
Implementation Method 1
A twist number is identified by the processing system based on the input data, wherein the twist number corresponds to a predetermined orbital angular momentum of a photon. Application of a light beam to the multiple orbital angular momentum modulators applies orbital angular momenta to the input optical beam resulting in a modulated optical beam having a predetermined number of twists based on the predetermined orbital angular momentum
Data Source
AI summary
Aspects of the subject disclosure may include, determining a twist number based on digital input data, wherein the twist number corresponds to a predetermined orbital angular momentum of a photon. Orbital angular momentum modulators adapted to change orbital angular momenta of an input signal are adjusted according to the twist number. Application of the input signal to the orbital angular momentum modulators applies orbital angular momenta to the input signal resulting in a twisted light signal having a predetermined number of twists based on the predetermined orbital angular momentum. Other embodiments are disclosed.