Concept

Orbital angular momentum multiplexing

Related publications (60)

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Multiuser two-way relaying method for beamforming systems

Ali H. Sayed

Relay transceiver processing for multiuser two-way communications is optimized based on zero-forcing (ZF) and minimum mean-square-error (MMSE) formulations under relay power constraints. Cochannel interference (CCI) frommultiusers and self-interference (SI ...

IEEE2009

Smart Antenna-Aided Multicarrier Transceivers for Mobile Communications

Yosef Akhtman

In spite of an immense interest from both the academic and the industrial communities, a practical multipleinput multiple-output (MIMO) transceiver architecture, capable of approaching channel capacity boundaries in realistic channel conditions remains lar ...

University of Southampton2007

Capacity enhancement in coherent optical MIMO (COMIMO) multimode fiber links

Ali H. Sayed

In this paper, we study a coherent optical MIMO (COMIEMO) multi-mode fiber link proposed for enhancing the fiber information capacity. We examine the statistical characterization of the equivalent MIMO channel and the improvement in the fiber capacity due ...

IEEE2006

Coherent optical MIMO (COMIMO)

Ali H. Sayed

We present a multiple-input multiple-output (MIMO) optical link based on coherent optics and its ability to exploit the inherent information capacity of multimode fiber. A coherent implementation differs from previous work in optical MIMO by allowing the s ...

IEEE2005

Measurement of γγ → pp̄ production at Belle

Aurelio Bay, Stewart Cole, Tagir Aushev, Sun Hee Kim, Sanjeev Kumar

A high precision study of the process γγ→pp̄ has been performed using a data sample of 89 fb-1 collected with the Belle detector at the KEKB e+e- collider. The cross section of pp̄ production has been measured at two-photon center-of-mass (c.m.) energies b ...

2005

Secondary grating formation by readout at Bragg-null incidence

Demetri Psaltis

We show that when a dynamic hologram is read out by illumination at the Bragg nulls of a previously recorded grating the diffracted beam inside the medium can result in the recording of two secondary gratings that alter the final selectivity curve. This is ...

1999

Hologram multiplexing using two-step recording

Demetri Psaltis

We present a comparison of different two-step holographic recording schemes based on their multiplexing performance using a unified framework. The difference between the different schemes is mainly due to the energy levels and sources of the traps. The inf ...

Spie-Int Soc Optical Engineering, Po Box 10, Bellingham, Wa 98227-0010 Usa1998

Angle And Space Multiplexed Holographic Storage Using The 90-Degrees Geometry

Demetri Psaltis

The 90-degrees geometry - with reference and signal beams entering orthogonal crystal faces - is used to angularly multiplex up to 500 holograms at each of 8 spatially multiplexed locations in a LiNbO3 crystal. A segmented mirror array and a 2D mechanical ...

1995

All-Optical Spatial Light-Modulator with Megahertz Modulation Rates

Benoît Marie Joseph Deveaud

We demonstrate a novel all-optical spatial Light modulator capable of megahertz modulation rates. It is based on the quantum-confined Stark effect, but the modulating electric field is entirely photogenerated by strongly asymmetric photocarrier transfer in ...

1995

Method For Holographic Storage Using Peristrophic Multiplexing

Demetri Psaltis

A method of multiplexing holograms by rotating the material or, equivalently, the recording beams is described. Peristropic (Greek for rotation) multiplexing can be combined with other multiplexing methods to increase the storage density of holographic sto ...

1994