Patent ID: 6714697
Filing Date: 2004-03-30
Classification: H04Q

Abstract:
An optical switching apparatus that receives optical signals from a plurality of input circuits and outputs the optical signals to one of a plurality of output circuits comprising:a plurality of input signal adjusting units for adjusting amplitude of the optical signals after being received at the plurality of the input circuits; an optical signal switching unit having a plurality of input ports and a plurality of output ports, the plurality of the input ports being connected to said input signal adjusting units and receiving the optical signals after being adjusted in said input signal adjusting units, said optical signal switching unit transferring the optical signal from said input ports to one of the plurality of said output ports; a plurality of output signal monitoring units connected to said output ports for monitoring the optical signals at said output ports to generate feedback signals based on the optical signals at said output port; and a controlling unit, connected to the plurality of said input signal adjusting units, said optical signal switching unit and said output signal monitoring units for selecting at least one of said input signal adjusting units and at least one of said output signal monitoring units based on a predetermined configuration of the optical switching unit and for controlling said selected one of said input signal control units based on the feedback signals generated by the selected one of said output signal monitoring units.