MODTAGEFORFORSTAERKER FOR EN OPTISK KOMMUNIKATIONSFORBINDELSE

摘要

The invention relates to a receiving preamplifier of an amplifier (1) which is preceded by an avalanche photodiode (APD) as receiving diode in the reverse direction and a capacitor (C1) and which has negative feedback via a resistor (RF). To create a receiving preamplifier which also properly functions with high received light powers and thus has a wide dynamic range, a PIN diode (PD) is connected in series in the forward direction with the avalanche photodiode (APD).