Patent ID: 6801684
Filing Date: 2004-10-05
Classification: G02B,H04Q

Abstract:
An optical switch fabric comprising two mirrors, at least one of said mirrors being a micro mirror array with tilting micro mirrors for individually switching optical paths for optical signals between input and output ports, especially between fibres or waveguides gathered in at least one fibre array, with two beam splitters and each one detector array associated, wherein the beam splitters are positioned such, that they partly reflect the optical signals, after being reflected by corresponding micro mirrors, to the associated detector array, with the following means for optimising the optical behaviour of the switch fabric:micro mirror control means for generating first feedback signals out of the corresponding detector array to correct the corresponding angular positions of said micro mirrors and alignment means for aligning the mirrors and the at least one fibre array to each other, comprising signal sending means for sending a control signal from one input fibre to one output fibre, detecting means for detecting each the intensity of said reflected parts of said control signal and for detecting the intensity of the remaining part not reflected by the beam splitters, that irradiates to said output fibre and control means to generate second feedback signals out from said detected intensities.