title: Precision spectral manipulation of optical pulses using a coherent photon echo memory.
abstract: Photon echo schemes are excellent candidates for high efficiency coherent optical memory. They are capable of high-bandwidth multipulse storage, pulse resequencing and have been shown theoretically to be compatible with quantum information applications. One particular photon echo scheme is the gradient echo memory (GEM). In this system, an atomic frequency gradient is induced in the direction of light propagation leading to a Fourier decomposition of the optical spectrum along the length of the storage medium. This Fourier encoding allows precision spectral manipulation of the stored light. In this Letter, we show frequency shifting, spectral compression, spectral splitting, and fine dispersion control of optical pulses using GEM.
authors.affiliation: ARC Centre of Excellence for Quantum-Atom Optics, Department of Quantum Science, The Australian National University, Canberra, Australian Capital Territory 0200, Australia. ben.buchler@anu.edu.au
authors.forename: B C
authors.initials: BC
authors.lastname: Buchler
authors.forename: M
authors.initials: M
authors.lastname: Hosseini
authors.forename: G
authors.initials: G
authors.lastname: Hétet
authors.forename: B M
authors.initials: BM
authors.lastname: Sparkes
authors.forename: P K
authors.initials: PK
authors.lastname: Lam