Calibrating Compact Optical Imaging Systems Using Aperture Plates
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Solution Overview
Problem
High numerical aperture optics in quantum information processing systems introduce optical aberrations, such as astigmatism, coma, and vignetting, which reduce the detection fidelity of single ion imaging and make calibration challenging due to the faint light emitted by single atoms.
Innovation Solution
A method and system for calibrating optical systems using aperture plates to align optical components, including lenses and mirrors, by capturing images before and after repositioning these components to minimize aberrations and maximize fluorescence collection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If high numerical aperture optics are used to improve fluorescence collection, then signal collection efficiency is improved, but optical aberrations increase reducing detection fidelity
Solution Approach 1:
The patent applies parameter changes by systematically adjusting optical component parameters (lens positions, mirror angles, aperture sizes) to optimize the balance between numerical aperture and aberration levels. The calibration process modifies these parameters to achieve diffraction-limited performance while maintaining high fluorescence collection efficiency.
2Measurement precision
If optical components are repositioned to reduce aberrations, then detection fidelity is improved, but calibration complexity increases due to faint light signals
Solution Approach 1:
The patent applies preliminary action by implementing a systematic calibration sequence that positions optical components in optimal configurations before single-ion imaging begins. The method establishes reference images and calibration patterns in advance, creating a foundation that simplifies subsequent alignment operations and reduces the difficulty of working with faint quantum signals.
Solution Approach 2:
The patent uses intermediary calibration patterns and reference images as mediators between the optical components and the faint quantum signals. These intermediaries provide visible reference points that facilitate precise alignment without requiring direct observation of the faint single-ion fluorescence during the calibration process.
3Measurement precision
If aperture plates are introduced to correct aberrations, then optical alignment is improved, but system complexity increases
Solution Approach 1:
The patent applies segmentation by dividing the optical correction function into discrete aperture plates positioned at specific locations within the optical path. Each aperture plate addresses specific aberrations independently, allowing for modular adjustment and calibration of individual optical components without requiring complete system redesign.
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 calibration method effectively reduces optical aberrations, improving the detection fidelity and signal-to-noise ratio in quantum information processing systems by ensuring proper alignment and reducing vignetting, thereby enhancing the performance of high-resolution imaging systems.
Implementation Method 1
receiving, by a camera sensor, a first image of a light beam emitted by an ion of a trapped ion chain
Implementation Method 2
The optical relay includes a lens; a mirror configured to fold the beam of light
Implementation Method 3
a mirror configured to fold the beam of light
Data Source
AI summary
Aspects of the present disclosure relate generally to systems and methods for use in the implementation and/or operation of quantum information processing (QIP) systems, and more particularly, to calibrate compact optical imaging systems that use single atom imaging. A QIP system includes an optical system including an optical relay that receives a beam of light, a housing, and at least one aperture plate. The optical relay includes at least one lens, at least one mirror to fold the beam of light, and a camera sensor to capture at least one image of the beam of light. The housing accommodates the optical relay and includes a slot mechanically referenced to at least one of the lens(es) and the mirror(s). The aperture plate is receivable in the slot. The aperture plate includes an aperture alignable with an optical axis of the optical relay when the aperture plate is received in the slot.