Patent ID: 6242732
Filing Date: 2001-06-05
Classification: H03G,H04B

Abstract:
A method for controlling an optical receiver, said receiver comprising a transimpedance amplifier (21) and a photo detector (PD) for converting optical power arriving at the receiver into electric current, in accordance with which methoda differential amplifier (21) having two inputs is used as the transimpedance amplifier, the output of the photo detector being operationally connected to one of the inputs of the transimpedance amplifier, anda direct voltage component is separated from an output voltage of the amplifier,characterized in thatthe input of the transimpedance amplifier which is different from the input used by the photo detector is controlled on the basis of the separated direct voltage component in such a way that a direct voltage level at said input changes in response to a change in said direct voltage component.