Toward a Quantum Memory in a Fiber Cavity Controlled by Intracavity Frequency Translation
Philip J. Bustard, Kent Bonsma-Fisher, Cyril Hnatovsky, Dan Grobnic, Stephen J. Mihailov, Duncan England, Benjamin J. Sussman
Abstract
We propose a quantum memory protocol based on trapping photons in a fiber-integrated cavity, comprised of a birefringent fiber with dichroic reflective end facets. Photons are switched into resonance with the fiber cavity by intracavity Bragg-scattering frequency translation, driven by ancillary control pulses. After the storage delay, photons are switched out of resonance with the cavity, again by intracavity frequency translation. We demonstrate storage of quantum-level THz-bandwidth coherent states for a lifetime up to 16 cavity round trips, or 200 ns, and a maximum overall efficiency of 73%.
Topics & Concepts
PhotonOpticsPhysicsBirefringenceOptical fiberFiberOptoelectronicsQuantum opticsResonance (particle physics)Fiber laserMaterials scienceQuantumDichroic glassQuantum informationQuantum memoryFrequency combQuantum networkLaserDichroic filterCavity quantum electrodynamicsPhoton entanglementTranslation (biology)Optical cavityQuantum optics and atomic interactionsOptical Network TechnologiesQuantum Information and Cryptography