The receiver has an optical/electrical converter, an electronically fed back filter (5) and at least one eye monitor (6) for determining the quality of the transmission path, whereby the output of the eye monitor(s) is connected to the input of the electronically fed back filter. The outputs of two eye monitors can be connected to the inputs of a distributed feedback equalizer. Independent claims are also included for: 1. a rapid eye monitor, 2. a method of measuring an eye opening of an eye diagram; and 3. a method of assessing a distorted signal.
Receiver with feedback filter and eye-monitor for the feedback filter