Qubit operations using a modular optical system engineered with PyOpticL: a code-to-CAD optical layout tool

TL;DR

This paper introduces PyOpticL, an open-source Python library that simplifies complex optical system design through modular, dynamic layouts, enabling scalable quantum computing and atomic physics applications.

Contribution

PyOpticL provides a novel, flexible tool for optical layout automation, supporting modular design and dynamic routing for scalable quantum and atomic optical systems.

Findings

Demonstrated a full laser system for strontium ions with 99.9% fidelity gates

Enabled modular optical subsystem design for atomic and molecular experiments

Facilitated scalable optical system development for quantum computing

Abstract

Complex optical design is hindered by conventional piecewise setup, which prevents modularization and therefore abstraction of subsystems at the circuit level. This limits multiple fields that require complex optics systems, including quantum computing with atoms and trapped ions, because their optical systems are not scalable. We present an open-source Python library for optical layout (PyOpticL) which uses beam-path simulation and dynamic beam-path routing for quick and easy optical layout by placing optical elements along the beam path without a priori specification, enabling dynamic layouts with automatic routing and connectivity. We use PyOpticL to create modular drop-in optical baseplates for common optical subsystems used in atomic and molecular optics (AMO) experiments including laser sources, frequency and intensity modulation, and locking to an atomic reference for stabilization. We demonstrate this minimal working example of a dynamic full laser system for strontium trapped ions by using it for laser cooling, qubit state detection, and 99.9% fidelity single-qubit gates with 3D printed baseplates. This enables a new paradigm of design abstraction layers for engineering optical systems leveraging modular baseplates, as they can be used for any wavelength in the system and enables scaling up the underlying optical systems for quantum computers. This new open-source hardware and software code-to-CAD library seeks to foster open-source collaborative hardware and systems design across numerous fields of research including AMO physics and quantum computing with neutral atoms and trapped ions.