LARGE-CAPACITY OPTICAL FIBER SWITCH DEVICE AND THE PROGRAM-CONTROLLED EXCHANGE METHOD

An optical switch for optical fiber large-capacity stored program control exchanges. Optical transmission among optical fibers is performed through the reflection of lasers by a lens part of DMD chips. The lens part of the DMD chips consists of at least two single lenses (1) or at least two lens basic units (2) arranged in an one-dimensional array. The lens basic units (2) are formed by arranging a number of single lenses (1) in an n×n matrix, wherein 2≤n≤10. The one-dimensional array is arranged in such a direction that lasers do not interfere with each other after reflection. The area of the single lenses (1) or that of the lens basic units (2) is no less than the cross-sectional area of a single optical fiber. In the optical switch, the DMD imaging technology in the non-communication field is applied to the communication field. The one-dimensional array technology is applied to butt-join the DMD and optical fibers and realize a large-capacity optical switch with the optical fiber switching >5.