Reconfigurable bipolar analog optical crossbar switch.
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.
de Groot
P J
PJ
Noll
R J
RJ