Thomas Swan & Co. Limited

Ilias Manolis

William Alden Crossland

Brian Robertson

Melanie Holmes

Timothy David Wilkinson

Maura Redmond

Kim Leong Tan

Steven Warr

An optical switch uses two ferroelectric liquid crystal spatial light modulators () with an interconnect region in between. The switch uses bulk lenses () to focus light from an input fibre array () to a first spatial light modulator (), and from the second spatial light modulator () to an output array (). Each spatial light modulator displays a respective hologram selected from a previously calculated set, to cause a desired switching of light from the input fibre array to the output array.

Optical switching with ferroelectric liquid crystal SLMs

An optical switch uses a polarization insensitive spatial light modulator operating by a double pass through a liquid crystal cell. The switch includes two such modulators in a cross bar arrangement. Different embodiments employing techniques for reducing cross talk are described.

Optical switch including two integrated multiphase SLM's and a wave-plate the wave-plate providing an optical retardance of (2n+1)&#x3bb;/4

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Olympias Hleias, Greece

Ilias Manolis