Patent ID: 6625341
Filing Date: 2003-09-23
Classification: G02B

Abstract:
An optical cross connect switching system for directing optical signals from incoming fibers in a first optical fiber array to selected destination outgoing fibers in a second optical fiber array, the system comprising:a first mirror array for controllably reflecting the optical signals received from the incoming fibers, and comprising a plurality of controllably deflectable mirrors; a second mirror array for controllably reflecting the optical signals received from the first mirror array to the selected destination outgoing fibers, and comprising a plurality of controllably deflectable mirrors; a first set of position sensitive detectors for providing feedback for coarse positioning of the pluralities of controllably deflectable mirrors in the first and second mirror arrays; a second set of position sensitive detectors for providing feedback for fine positioning of the pluralities of controllably deflectable mirrors in the first and second mirror arrays; and a system controller coupled to the output of the first set of position sensitive detectors, to the output of the second set of position sensitive detectors, to the input of the first mirror array, and to the input of the second mirror array, for controlling the deflections of the pluralities of controllably deflectable mirrors in the first and second mirror arrays in response to the destination outgoing fibers selected for the optical data signals, to the feedback for coarse positioning, and to the feedback for fine positioning.