OPTICAL TRANSMITTER

摘要

An optical transmitter which is capable of performing high-speed On/Off control of the bias light to be applied to an optical modulator as an input. A high-speed current switching circuit (3) performs high-speed On/Off control of a drive current for the LD2 depending on the LD On/Off signal for high-speed On/Off control of an optical output of the LD2. Further, a temperature detection current generator circuit (4) detects ambient temperature to generate the drive current adjusted in accordance with detected ambient temperature such that the optical output of the LD2 is never changed depending on ambient temperature.