High compliance laser driver circuit

A laser driver circuit configured to receive a data input signal and to generate an output modulation current signal indicative of the data input signal, the laser driver circuit including a differential circuit configured to receive the data input signal and an output circuit configured to generate the output modulation current signal having a given modulation current value, the differential circuit being supplied by a regulated supply voltage, the laser driver circuit comprising:

• a control circuit having an input node configured to receive the regulated supply voltage as an input signal and having an output node connected to a first resistor, the control circuit being configured to generate a feedback voltage across the first resistor to cause a first current to flow in the first resistor having a current value equal or proportional to the modulation current value;
• and
• an operational amplifier configured to receive the feedback voltage and a reference voltage indicative of a desired modulation current value and to generate the regulated supply voltage supplying the differential circuit,
• wherein the control circuit and the operational amplifier form a feedback control loop to adjust the regulated supply voltage so as to regulate the feedback voltage to be equal to the reference voltage, thereby regulating the modulation current value to the desired modulation current value.