Compact gain-block consisting of an Er-doped waveguide amplifier (EDWA) and a pump/signal multiplexer, realized by ion exchange

We report on the first realization by ion-exchange of an Er3+-doped planar waveguide amplifier with integrated pump/signal multiplexer. The module has a fiber-to-fiber gain of 15.7 dB and a noise figure of 4.7 dB at 1535 nm.