Abstract: An optical switching matrix arrangement for optical communication and information networks based on optical fibers, including M different optical collimated input channels defining light beams and N optical collimated output channels defining light beams, each input channel being connected to a different output channel. A total of N2 transmitting and deflecting prisms introducable into paths of the beams at intersections of the M collimated input beams and the N collimated output beams so as to deflect the input-side light in a controlled manner onto corresponding output channels. A plurality of piezoelectric bimorph actuators are provided so that one of the actuators is assigned to each of the deflecting prisms for moving the prism, M=N or M≠N.