Optical transmitter circuit

An optical transmitter circuit for driving a light emitting element (1) according to a received digital signal (S), the optical transmitter circuit comprising:

• a peaking current generating section (2 or 19) for generating a peaking current in synchronism with a rising edge and a falling edge of the digital signal (S);
• a light emitting element driving section (5, 6, or 7), provided between the light emitting element (1) and the peaking current generating section (2 or 19), for producing a driving current obtained by combining together a signal amplitude current according to an amplitude of the digital signal (S) and the peaking current, so as to drive the light emitting element (1) by using the driving current;
• a signal analysis section (9) for analyzing the digital signal (S) so as to set a control signal based on at least one of a pulse width and the amplitude of the digital signal (S);
• and
• a clipping section (8) for clipping the peaking current of the driving current according to the control signal set by the signal analysis section (9).