Compact Goniometer Mount for Quantum Optical Alignment
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Solution Overview
Problem
Conventional goniometer designs for quantum information processing systems are typically large and thick in the direction of rotation, making it difficult to position acousto-optic deflectors (AODs) within compact spaces, which is a challenge in quantum computing systems that require precise control of optical beam orientation for trapped ions.
Innovation Solution
A compact goniometer mount system with a rotary mounting plate and actuator that allows for precise angular adjustment of AODs, minimizing the footprint and enabling alignment within sterically constrained spaces by rotating the AOD mounting plate about a central axis, thereby maintaining alignment of the acousto-optical crystal with the axis of rotation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If conventional goniometer designs are used, then angular adjustment capability is provided, but the device becomes large and thick in the direction of rotation
Solution Approach 1:
The patent repositions the rotation axis from a horizontal orientation (conventional design) to a vertical orientation, effectively changing the dimensional arrangement. This allows the rotary mounting plate to rotate about a vertical axis, minimizing the horizontal footprint while maintaining full angular adjustment capability. The vertical axis of rotation enables the AOD to be positioned within compact spaces without sacrificing operational range.
Solution Approach 2:
The design nests the rotary mounting plate within the mounting bracket structure, with the rotation axis passing through the center of the back plate. The AOD is mounted on the rotary plate such that its center aligns with the rotation axis, creating a compact nested arrangement that minimizes overall device thickness while preserving rotational functionality.
2Area of stationary object
If compact goniometer design is implemented, then footprint is minimized, but precise alignment of AOD may be compromised
Solution Approach 1:
The patent concentrates precision alignment features at critical locations: the rotation axis is precisely positioned at the center of the back plate, and the AOD is mounted on the rotary plate such that its center aligns with this axis. This localized precision approach ensures accurate beam deflection while allowing the overall device to have a compact footprint. The slots radially disposed about the center provide precise angular positioning without requiring the entire device to be large.
Solution Approach 2:
The patent replaces conventional mechanical alignment mechanisms with a streamlined design where the AOD's center is directly aligned with the rotation axis. This eliminates the need for complex mechanical alignment systems, reducing the device footprint while maintaining precise alignment through the inherent geometry of the mounting structure.
3Volume of moving object
If AOD is positioned in compact space, then space efficiency is improved, but device complexity increases
Solution Approach 1:
The mounting bracket serves multiple functions: it provides structural support, defines the rotation axis, contains the rotary mounting plate, and enables angular adjustment. The rotary mounting plate simultaneously mounts the AOD and provides the rotation mechanism. This multi-functionality reduces the number of separate components needed, achieving compact space efficiency without proportionally increasing device complexity.
Solution Approach 2:
The patent merges the mounting function and rotation function into a single integrated structure. The mounting bracket and rotary mounting plate work as a unified system, with the rotation axis passing through the center of the back plate and the AOD mounted such that its center aligns with this axis. This consolidation achieves compact positioning while keeping the overall structure relatively simple rather than adding separate complex mechanisms.
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 compact goniometer mount system allows for precise control of AOD orientation, facilitating efficient operation in quantum computing systems by accommodating the size constraints of AODs and maintaining alignment without adding bulk, thus enhancing the operational flexibility and precision in quantum information processing.
Implementation Method 1
The actuator is configured to rotate about a second axis, which rotates the rotary mounting plate about the first axis
Implementation Method 2
The AOD includes a crystal configured to deflect an incoming beam from an optical addressing system onto one or more trapped ions
Data Source
AI summary
Aspects of the present disclosure relate generally to systems and methods for using a goniometer mount system for use with a quantum information processing (QIP) system. The goniometer mount system includes a mounting bracket comprising a base plate and a back plate having a plurality of slots radially disposed about a center of the back plate. The goniometer mount system includes a rotary mounting plate that is rotatably coupled to the mounting bracket and configured to rotate about an axis extending through the center of the back plate that is circumscribed by the plurality of slots.