@inproceedings{6fe4ea8cd0014f11beb0671954235986,
title = "All-optical Ultrawide-bandwidth Quantum Buffer",
abstract = "Quantum optical memories are a key component in a variety of quantum information applications, from extending quantum communication channels to building high-efficiency single-photon sources to enabling protocols requiring multiple synchronized qubits. However, most current photon storage systems utilize light-matter interactions and are therefore not broadband; meanwhile the available broader-bandwidth photon storage systems operate with somewhat shorter storage times or require cryogenic operation. Here we develop a system with multiplexed free-space storage cavities, able to store single photons with high efficiency over variable delays, up to 12.5 μs, and over multiple nanometers bandwidth at room temperature. The system can store multiple qubits encoded in various degrees of freedom (e.g., time-bin, and polarization) simultaneously. The work presented here has demonstrated storage of polarization states for 1.25 μs and retrieval through single-mode fiber with a state fidelity >99% and efficiency 82%.",
keywords = "Delay Line, Herriott Cell, Quantum Buffer, Quantum Memory, Quantum Repeater",
author = "Arnold, {Nathan T.} and Michelle Victora and Goggin, {Michael E.} and Kwiat, {Paul G.}",
note = "Funding Information: This research was funded by the Office of Naval Research MURI Grant No. N00014-17-1-2286 and the National Science Foundation Grant No. EFMA-1640968. Publisher Copyright: {\textcopyright} 2021 Copyright SPIE.; Photonics for Quantum 2021 ; Conference date: 12-07-2021 Through 16-07-2021",
year = "2021",
doi = "10.1117/12.2600820",
language = "English (US)",
series = "Proceedings of SPIE - The International Society for Optical Engineering",
publisher = "SPIE",
booktitle = "Photonics for Quantum 2021",
}