The models FM, VFS, VFM and MSM are specially designed for very fast modulation with arbitrary curves and for very short pulses. The maximum diode current for CW operation is 120 A, for pulsed operation 240 A at maximum diode voltages of 49 V. Depending on the overall configuration “laser driver - laser diode”, a rise time of ≤ 10 ns and a frequency of ≥ 30 MHz can be achieved.

The VFS driver in particular offers the following additional advantages:

– serial interface (USB, RS232)

– internal pulse generator

– adjustable supply voltage for the laser diode in order to reduce power dissipation

– closed-loop parameters adjustable via software