Journal ArticleDOI
All-optical modulation of four-wave mixing in an Rb-filled photonic bandgap fiber
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TLDR
Efficient all-optical modulation using Rb vapor confined to a hollow-core photonic bandgap fiber is demonstrated, corresponding to 23 photons per atomic cross section lambda(2)/(2pi).Abstract:
We demonstrate efficient all-optical modulation using Rb vapor confined to a hollow-core photonic bandgap fiber. The intensity of a signal field participating in the four-wave-mixing process is modulated using a weak switching field. We observe 3dB of attenuation in the signal field with only 3600 photons of switching energy, corresponding to 23 photons per atomic cross section λ2/(2π). Modulation bandwidths as high as 300MHz are observed.read more
Citations
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Proceedings Article
Observation of Electromagnetically Induced Transparency in Collisionally Broadened Lead Vapor
TL;DR: In this article, the probe energy is increased to 150 n3 (10" W/cm ) and the absorption cross section at the transmission maximum increases by a factor of approximately 2.
Journal ArticleDOI
Few-photon all-optical modulation in a photonic band-gap fiber.
TL;DR: This work demonstrates 25% all-optical modulation with <20 photons, i.e., a few attojoules of energy, using nondegenerate two-photon absorption in rubidium atoms confined to a hollow-core photonic band-gap fiber.
Proceedings Article
Ultralow-Power Four-Wave Mixing with Rb in a Hollow-Core Photonic Band-Gap Fiber
TL;DR: This work demonstrates extremely efficient four-wave mixing with gains greater than 100 at microwatt pump powers and signal-to-idler conversion of 50% in Rb vapor confined to a hollow-core photonic band-gap fiber and presents a theoretical model that demonstrates such efficiency is consistent with the dimensions of the fiber and the optical depths attained.
Journal ArticleDOI
Electromagnetic wave propagation in spatially homogeneous yet smoothly time-varying dielectric media
Armen G. Hayrapetyan,Jörg B. Götte,K.K. Grigoryan,Stephan Fritzsche,Stephan Fritzsche,R.G. Petrosyan +5 more
TL;DR: In this paper, the propagation and transformation of electromagnetic waves through spatially homogeneous yet smoothly time-dependent media within the framework of classical electrodynamics is explored. But the authors do not consider the effect of the time-varying permittivity of the media.
Journal ArticleDOI
Enhanced two-photon absorption in a hollow-core photonic-band-gap fiber
TL;DR: In this article, the authors show that two-photon absorption in rubidium atoms can be greatly enhanced by the use of a hollow-core photonic-band-gap fiber.
References
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Journal ArticleDOI
Linear optical quantum computing with photonic qubits
Pieter Kok,William J. Munro,Kae Nemoto,Timothy C. Ralph,Jonathan P. Dowling,Gerard J. Milburn +5 more
TL;DR: In this article, the authors reviewed the original theory and its improvements, and a few examples of experimental two-qubit gates are given, and the use of realistic components, the errors they induce in the computation, and how these errors can be corrected is discussed.
Journal ArticleDOI
Giant Kerr nonlinearities obtained by electromagnetically induced transparency.
Holger Schmidt,Atac Imamoglu +1 more
TL;DR: A cross-phase modulation scheme that exhibits a giant, resonantly enhanced nonlinearity, along with vanishing linear susceptibilities, is analyzed and has possible applications in quantum nondemolition measurements and for quantum logic gates.
Journal ArticleDOI
Photon Switching by Quantum Interference
TL;DR: In this article, the authors describe a four-state atomic system that absorbs two photons, but does not absorb one photon, but operates at an energy cost of one photon per switching event.
Journal ArticleDOI
Efficient all-optical switching using slow light within a hollow fiber.
Michal Bajcsy,Sebastian Hofferberth,Vlatko Balic,Thibault Peyronel,Mohammad Hafezi,Alexander S. Zibrov,Vladan Vuletic,Mikhail D. Lukin +7 more
TL;DR: A fiber-optical switch that is activated at tiny energies corresponding to a few hundred optical photons per pulse is demonstrated by simultaneously confining both photons and a small laser-cooled ensemble of atoms inside the microscopic hollow core of a single-mode photonic-crystal fiber.
Journal ArticleDOI
Observation of large Kerr nonlinearity at low light intensities.
Hoonsoo Kang,Yifu Zhu +1 more
TL;DR: The measured Kerr nonlinearity is comparable in magnitude to the linear dispersion in a simple two-level system and is several orders of magnitude greater than the Kerr non linearity of a conventional three-level scheme under similar conditions.