Driver circuit for a laser

A driver circuit for a laser, said driver circuit comprising:

• a first differential amplifier with a first controlled current source, first and second outputs of the first differential amplifier being connected through a laser to a first terminal of a voltage source and directly to the first terminal of the voltage source, respectively, an input voltage being applied between first and second inputs of the first differential amplifier, the first differential amplifier being connected through the first controlled current source to a second terminal of the voltage source;
• at least one second differential amplifier with an associated second controlled current source, the at least one second differential amplifier connected in parallel with the first differential amplifier by interconnecting respective first and second inputs and respective first and second outputs, so that the laser is a common load of the first and the at least one second differential amplifiers, the at least one second differential amplifier being connected through the associated second controlled current source to the second terminal of the voltage source;
• and
• a control circuit for controlling the current sources, respective control inputs of the current sources being coupled to outputs of the control circuit, the control circuit having an input connected to an external control voltage.