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1. (WO2001091311) SPINTRONIC OPTICAL DEVICE

Pub. No.:    WO/2001/091311    International Application No.:    PCT/US2001/016551
Publication Date: Nov 29, 2001 International Filing Date: May 23, 2001
IPC: G02B 6/26
G02B 6/35
G02F 1/017
G02F 1/09
G02F 1/35
H04B 10/135
H04J 14/08
Applicants: LIGHTSPIN TECHNOLOGIES, INC.
Inventors: SALZMAN, David, B.
Title: SPINTRONIC OPTICAL DEVICE
Abstract:
An ultra-fast optical apparatus and methods for reading and writing optical intensities are disclosed. A shutter (104) uses a spintronic device exploiting the quantum Faraday effect to sample or modulate the intensity of an optical data stream, preferably as bits in a digital data train (4). The methods set or sample the intensity. A useful application of the methods and apparatus sets or samples optical intensities, taking or putting them , whether in optical or electrical form, optionally at a demultiplexed bus width or data rate. Optical logic, memory and communication devices and methods are disclosed.