Posted to News on 16th Oct 2020, 00:00
Drivers for high-power cw laser diodes
PicoLAS introduced two new drivers of the LDP-CW 250-40 series to offer efficient control of high-performance continuous wave laser diodes. The electronics are housed in an ultra-compact casing and achieve an output power of 10kW at a power density of 5W/cm³. At an efficiency of 94%, both models generate a maximum output current of 250A and an output voltage of up to 40V.
As usual, PicoLAS replaced the conventional linear current regulators with a self-developed digital alternative that offers significantly higher efficiency. The standard configuration of the driver convinces with an extremely low ripple current of less than 0.85% and, at a maximum modulation frequency of 1kHz, only has an overshoot of less than 3%.
The fast (F) version offers a considerably higher modulation frequency of 50 kHz and a rise time of less than 20µs. Its overshoot also lies below 3%.
All drivers of the LDP-CW 250-40 series have isolated control. They can be fully controlled by analogue signals and are easy to integrate near the laser diode.
