title: Reconfigurable bipolar analog optical crossbar switch.
abstract: A differential technique is proposed for obtaining bipolar analog {-1 . . . 0 . . . 1} inputs, outputs, and connection weights in a mask-type optical crossbar switch. The technique compensates for the limitations of current component technology and permits the use of inexpensive, low-contrast spatial light modulators for reconfigurable switching matrices. The conclusions of this work may be extended to design improvements in a wide variety of optical computing implementations.
authors.forename: P J
authors.initials: PJ
authors.lastname: de Groot
authors.forename: R J
authors.initials: RJ
authors.lastname: Noll