OPTICAL SWITCH BASED ON LIGHT SPATIAL MODULATORS

摘要

The invention concerns an optical switch for optical beams comprising a series of optical input channels (110) and a series of optical output channels (210), two optical index spatial modulating cells (300, 400) adapted to respectively deflect an optical beam coming out of an input channel and arriving onto an output channel, each series of optical channels (110, 210) being distributed according to two dimensions transverse to the direction of the channels and the index spatial modulating cells (300, 400) being each designed to produce deflections according to said two dimensions. The invention is characterised in that it comprises at least a convergent optical assembly (500) overlapping one first of the two cells (300, 400) and whereof the focus, defined relative to the light path in the switch, is proximate to the plane of the other cell, and the or each convergent optical assembly (500) has its optical centre (X) bordering a deflecting cell (300, 400), substantially perpendicular to the centre on one side of said cell.