Self-Aligning Illumination Beam Control for Quantum Systems

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Solution Overview

Problem

Existing quantum systems face challenges with manual alignment of light sources, which is time-consuming and requires frequent realignment due to environmental variations, hindering industrialization.

Innovation Solution

A self-aligning illumination system with a movable alignment unit, detection unit, and electronic control device that automatically adjusts the light source alignment using calibration beams and optical sensors to ensure precise alignment.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If manual alignment is used for light sources, then alignment precision can be achieved, but realignment is time-consuming and limits industrialization

Engineering Contradiction:
Improvealignment precisionVSAvoidrealignment time
Core Design Contradiction:
Measurement precisionVSLoss of time

Solution Approach 1:

The system performs self-alignment through automated feedback control. The detection unit monitors beam position, the control device calculates corrections, and the alignment unit automatically adjusts mirrors to maintain precise alignment without manual intervention, enabling rapid realignment while preserving alignment precision

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The system implements continuous feedback control where the detection unit measures calibration beam positions, compares them against reference positions, and feeds correction signals back to the alignment unit to automatically compensate for misalignments caused by environmental variations, resolving the contradiction between precision and realignment time

Inventive Principle:
Principle #23Feedback

2Reliability

If manual realignment is performed frequently, then system performance is maintained, but productivity is reduced

Engineering Contradiction:
Improvesystem performanceVSAvoidindustrialization speed
Core Design Contradiction:
ReliabilityVSProductivity

Solution Approach 1:

The automated self-alignment system continuously maintains system performance by detecting and correcting alignment drift without requiring manual intervention, thereby preserving reliability while eliminating the productivity loss associated with frequent manual realignment operations

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The system maintains continuous alignment monitoring and correction, ensuring uninterrupted useful action of the quantum system without the interruptions caused by manual realignment cycles, thus improving both reliability and productivity simultaneously

Inventive Principle:
Principle #20Continuity of useful action

3Speed

If automated alignment is implemented, then realignment speed is improved, but device complexity increases

Engineering Contradiction:
Improverealignment speedVSAvoidsystem complexity
Core Design Contradiction:
SpeedVSDevice complexity

Solution Approach 1:

The alignment system is segmented into distinct functional modules: a detection unit for measuring beam position, a control device for calculating corrections, and an alignment unit with movable mirrors for execution. This modular segmentation enables automated realignment while managing complexity through functional decomposition and independent optimization of each subsystem

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

Enables rapid and automated realignment of light sources, maintaining system performance by adapting to environmental changes, thus enhancing industrial applicability.

Implementation Method 1

a detection unit, comprising at least a first optical sensor having a first detection surface and a second optical sensor having a second detection surface, the detection unit being configured for forming, from the at least two calibration beams, at least a first calibration point on the first detection surface and a second calibration point on the second detection surface

Methodology Applied
Scientific EffectPhotoelectric Effect: Photoelectric Effect

Data Source

PatentEP4653936A1Self-aligning illumination system and method for aligning the light source of such a system
Publication Date: 2025.11.26 PASQAL SAS
  • EP4653936A1 patent drawingFigure 1
  • EP4653936A1 patent drawingFigure 2
  • EP4653936A1 patent drawingFigure 3

AI summary

A self-aligning illumination system (15) for a quantum system (10) comprises a light source (20); a movable alignment unit (30) configured for controlling a direction of an output beam (82), at least part of which forms an illumination beam (84); a sampling unit (45) configured for forming at least two calibration beams (93, 94) from at least part of the output beam (82) received by a detection unit (55), configured for forming at least a first calibration point (A1) on a first detection surface (D1) and a second calibration point on a second detection surface (D2) respectively representative of a first position and a second position of the illumination beam (84) after respectively a first travel distance and a second travel distance less than the first travel distance; an electronic control device (60) configured for determining at least one positioning instruction of the alignment unit (30) based on a comparison of a position of the first and the second calibration points (A1, A2) with a respective reference position (A1-al, A2-al), such that, once the alignment unit (30) is positioned according to said positioning instruction, the illumination direction is aligned with a predetermined direction (Y1).