Patent ID: 6424445
Filing Date: 2002-07-23
Classification: H01S,H04B,H04Q

Abstract:
An optical cross-connect equipment comprising:an optical circuit including an optical switch which has a plurality of inputs and a plurality of outputs and exchanges connection between said plurality of inputs and said plurality of outputs for optical signals; a first optical transmission apparatus which includes a wavelength demultiplexer, a supervisory information receiver, and an optical amplifier and which is connected to one of said plurality of inputs of said optical switch; said wavelength demultiplexer outputs a supervisory optical signal to said supervisory information receiver and outputs a data optical signal to said optical amplifier; a second optical transmission apparatus being connected to one of said plurality of outputs of said optical switch wherein said second optical transmission apparatus is comprised of an optical transmitter for converting a second supervisory electric signal from said controller into a second supervisory optical signal and for sending out said second supervisory optical signal; a wavelength multiplexer for multiplexing the data signal from said optical circuit and the second supervisory optical signal; and a controller for controlling said optical switch on a basis of information from one of said supervisory information receiver.