title: Design and analysis of an adaptive board-to-board dynamic holographic interconnect.
abstract: We describe the design and analysis of an adaptive free-space optical interconnect between two circuit boards in a standard electronic backplane. An array of vertical-cavity surface-emitting lasers is used as the transmitter, and this communicates with a detector array on the receiver circuit board. Routing is achieved with a holographic crossbar that has a ferroelectric liquid-crystal spatial light modulator to display binary phase computer-generated holograms. A detailed analysis of a 48-channel interconnect designed to operate at 1 (Gbytes/s)/channel indicates that such a switch will operate successfully given typical components and card misalignments.
authors.affiliation: Department of Engineering Science, Oxford University, Parks Road, Oxford OX1 3PJ, United Kingdom. dominic.obrien@eng.ox.ac.uk
authors.forename: Dominic C
authors.initials: DC
authors.lastname: O'Brien
authors.forename: Grahame E
authors.initials: GE
authors.lastname: Faulkner
authors.forename: Timothy D
authors.initials: TD
authors.lastname: Wilkinson
authors.forename: Brian
authors.initials: B
authors.lastname: Robertson
authors.forename: Diego Gil
authors.initials: DG
authors.lastname: Leyva