Precision spectral manipulation: a demonstration using a coherent optical memory

TL;DR

This paper demonstrates precise spectral manipulation of optical pulses using a gradient echo memory scheme combined with a multi-element solenoid, enabling advanced quantum information processing techniques.

Contribution

It introduces a novel experimental setup for high-precision spectral control of optical pulses in quantum memory systems.

Findings

Successful bandwidth and frequency manipulation of optical pulses

Effective spectral filtering of separate frequency components

Time-delayed interference between pulses with same and different frequencies

Abstract

The ability to coherently spectrally manipulate quantum information has the potential to improve qubit rates across quantum channels and find applications in optical quantum computing. In this paper we present experiments that use a multi-element solenoid combined with the three-level gradient echo memory scheme to perform precision spectral manipulation of optical pulses. These operations include bandwidth and frequency manipulation, spectral filtering of separate frequency components, as well as time-delayed interference between pulses with both the same, and different, frequencies. These operations have potential uses in quantum information applications.