Atmospheric Turbulence Compensation in Multi-Beam Tracking Systems
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Solution Overview
Problem
Existing systems for controlling and compensating for atmospheric turbulence in laser beams require complex adaptive optical loops and substantial calculations, making them unsuitable for systems with a large number of elementary light beams.
Innovation Solution
A system comprising multiple light sources, collimators, a reference device with a reflecting plane, detection modules, angle deviation modules, a phase deviation module, and adjustment modules that track a target and compensate for atmospheric turbulence without complex optical loops or extensive calculations, by determining and adjusting for phase deviations in the wave front.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If complex adaptive optical loops or devices requiring substantial calculations are used to determine and adjust elementary light beam configurations, then the precision of beam power maintenance is improved, but the device complexity and computational burden increase significantly
Solution Approach 1:
The system divides the beam control problem into independent segments by using individual detection modules for each elementary light beam. Each module independently measures the power of its associated beam, eliminating the need for complex integrated optical loops. This segmentation allows parallel processing of multiple beams without increasing overall system complexity.
Solution Approach 2:
Each elementary light beam is equipped with its own detection module that autonomously measures its power without requiring central coordination or complex calculations. The system achieves self-service by allowing each beam-detection pair to independently determine its configuration status, significantly reducing the computational burden on the central control system.
2Stability of the object's composition
If complex adaptive optical loops are implemented to adjust elementary light beam configurations, then the beam power stability is improved, but the ease of operation and system simplicity deteriorate
Solution Approach 1:
The control system is segmented into independent units where each detection module directly controls its associated light beam configuration. This segmentation simplifies operation by eliminating the need to manage complex interdependencies between multiple beams, making the system easier to operate while maintaining stability through decentralized control.
Solution Approach 2:
The system implements simple feedback loops where each detection module continuously monitors its associated beam's power and provides direct feedback for configuration adjustment. This localized feedback mechanism maintains beam power stability without requiring complex centralized control algorithms, thereby improving ease of operation.
3Power
If a large number of elementary light beams are used to maintain sufficient power at the target, then the beam power at target is improved, but the difficulty of determining and adjusting individual beam configurations increases
Solution Approach 1:
The system assigns a dedicated detection module to each elementary light beam, creating a one-to-one correspondence between beams and detection units. This segmentation makes it trivial to detect and measure the configuration of each beam independently, regardless of the total number of beams, thereby eliminating the difficulty that would otherwise arise from managing large numbers of beams.
Solution Approach 2:
The detection modules are designed as universal, interchangeable units that can detect and measure any elementary light beam configuration. This universality allows the system to scale to any number of beams without increasing the complexity of detection or measurement, as each module performs the same function independently.
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
Enables effective tracking of targets and compensation for atmospheric turbulence, maintaining beam power without the need for complex calculations or optical loops, ensuring stable beam propagation.
Implementation Method 1
at least two collimators, with each of the collimators being respectively associated with one of the light sources, with each one of the collimators being configured to collimate the light beam of the associated light source
Implementation Method 2
a reference device arranged downstream of all the collimators in the emission direction, the reference device comprising a reflecting plane configured to reflect a portion of the light beam exiting from all the collimators
Data Source
AI summary
A system and a method for tracking a target and for compensating for atmospheric turbulence is described. In an embodiment, the system includes at least two light sources each emitting a light beam to the target; at least two collimators that collimate the light beam of the associated light source; and a reference device to reflect a portion of the light beam exiting from all the collimators. The system also includes: at least two targeting modules to lead the light beam from the light source to reach a predetermined zone of the target; at least two detection modules to receive and detect the portion of the beam reflected by the reference device; a module for determining angle of deviation; a module for determining phase deviation; and an adjustment module for adjusting each of the light sources in order to compensate for atmospheric turbulence.