Polarization preserving ultra fast optical shutter for quantum information processing

TL;DR

This paper introduces an ultra-fast optical shutter that preserves polarization states, utilizing a self-stabilized interferometer with high fidelity, suitable for quantum information processing applications.

Contribution

It presents a novel polarization-preserving optical shutter based on a self-stabilized interferometer with high transmittivity and fidelity, advancing quantum information control.

Findings

High transmittivity when active

High fidelity of polarization state preservation

Fast switching suitable for quantum applications

Abstract

We present the realization of a ultra fast shutter for optical fields, which allows to preserve a generic polarization state, based on a self-stabilized interferometer. It exhibits high (or low) transmittivity when turned on (or inactive), while the fidelity of the polarization state is high. The shutter is realized through two beam displacing prisms and a longitudinal Pockels cell. This can represent a useful tool for controlling light-atom interfaces in quantum information processing.