Multichannel Optomechanical Addressing for Parallel Ion Control
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Solution Overview
Problem
Existing optical systems face challenges in precisely directing and focusing multiple beams onto small regions within an image plane, particularly in applications like quantum computing where interionic distances are micrometers apart and require variable and highly precise adjustments.
Innovation Solution
The optical device employs an optical beam expansion unit, an optical rearrangement unit, and an optical element to rearrange and expand bundles of beams while maintaining parallelism, allowing for precise imaging of multiple beams onto an image surface independently of the number and arrangement of the beams.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If sequential addressing of individual ions using a single source is used, then device complexity is reduced, but productivity decreases due to bottleneck in fast performing Qubit operations
Solution Approach 1:
The patent divides a single optical source into multiple parallel optical sources (fiber array), enabling simultaneous addressing of multiple ions. This segmentation allows multiple beams to be directed at different ion positions concurrently, resolving the bottleneck of sequential operation while maintaining manageable device complexity through modular architecture
Solution Approach 2:
The patent combines multiple optical sources, beam expansion units, and imaging units into an integrated optical system. By merging these components into a coordinated multichannel system, the patent achieves high-speed parallel ion addressing while maintaining systematic organization that prevents excessive complexity
2Productivity
If the number of channels is increased to address more ions, then productivity improves, but device complexity increases due to scaling of optical unit diameter
Solution Approach 1:
The patent introduces variable beam expansion factors for different channels, allowing dynamic adjustment of beam sizes according to specific ion positions and requirements. This dynamic capability enables the system to handle varying numbers of channels and positions without requiring a uniformly large optical unit diameter, thus scaling productivity without proportionally increasing device complexity
Solution Approach 2:
The patent applies different beam expansion factors to different channels based on their specific requirements. By optimizing each channel's beam parameters locally rather than using a uniform configuration, the system achieves high productivity for multiple ions while minimizing the overall optical unit size and complexity
3Adaptability or versatility
If variable positions of output channels are required, then adaptability improves, but device complexity increases due to difficulty of achieving variable positions with fixed mirror arrangements
Solution Approach 1:
The patent replaces fixed mirror arrangements with variable beam expansion units that can dynamically adjust their expansion factors. This dynamic capability allows the system to achieve variable output channel positions and different magnifications adaptively, responding to changing ion positions without requiring complex mechanical reconfiguration of fixed components
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 solution enables high-precision optical association of input-side light source points with output-side target points, allowing for precise tracking of ion positions in ion traps and other applications, while maintaining efficiency and scalability.
Implementation Method 1
an optical beam expansion unit configured to expand each bundle of beams of the third set so as to obtain a fourth set of expanded bundles of beams
Implementation Method 2
an optical element configured to direct the second set of one or more bundles of beams onto the optical beam expansion unit by means of bundling, so that the optical beam expansion unit is reached by a third set of bundles of beams
Implementation Method 3
an optical imaging unit configured to image the fourth set of expanded bundles of beams onto the image surface
Data Source
AI summary
An optical device for imaging a first, object-side set of mutually parallel bundles of beams onto an image surface, includesan optical beam expansion unit;an optical rearrangement unit configured to rearrange the first set of mutually parallel bundles of beams while maintaining mutually parallelism to obtain a second set of mutually parallel bundles of beams;an optical element configured to direct the second set of one or more bundles of beams onto the optical beam expansion unit by means of bundling, so that the optical beam expansion unit is reached by a third set of bundles of beams,the optical beam expansion unit being configured to expand each bundle of beams of the third set to obtain a fourth set of expanded bundles of beams; andan optical imaging unit configured to image the fourth set of expanded bundles of beams onto the image surface.