Patent ID: 6236499
Filing Date: 2001-05-22
Classification: H04B,H04J

Abstract:
A dual optical amplifier building block comprising:a first and a second optical amplifier (OA), for amplifying a first and a second optical signal, respectively;a first input wave division multiplexing (WDM) coupler connected at the input of said first OA for separating a first optical service channel (OSC) from said first optical signal;a first output WDM coupler connected at the output of said first OA for adding said first OSC to said first optical signal;a second input WDM coupler connected at the input of said second OA for separating a second OSC from said second optical signal;a second output WDM coupler connected at the output of said second OA for adding said second OSC to said second optical signal;a first line-in and a first line-out connector for coupling said first optical signal over a first transmission line;a second line-in and a second line-out connector for coupling said second optical signal over a second transmission line;a first drop-OSC and a first add-OSC connector for coupling said first OSC to said respective first input and output WDM coupler; anda second drop-OSC and a second add-OSC connector for coupling said second OSC to said respective second input and output WDM coupler.