GaAs m.e.s.f.e.t. technology and characteristics for optical communication systems

For pulse regeneration applications GaAs m.e.s.f.e.t.s with low pinch-off voltages are desirable. The technology and the dependence of the input/output pulse width ratio on the bias voltage are described. The pulse behaviour of a two-stage sharpener is shown and the block diagram of an optical repeater station is proposed.