Laser Components’ LSP40 series plug-and-play driver modules are used to accurately control pulsed laser diodes. With just two resistors, the user can regulate both the operating current (and thus the laser power) and the pulse length. The module requires an operating voltage of only 12 VDC and an external trigger signal. The laser current can be set to any value up to a maximum of 40 A, and the pulse length can be set to between 30 and 150 ns at 40 A and, at 12 A, from 30 to 1000 ns. With the LSP40 modules, all 905- and 1550-nm pulsed laser diodes available from the company can be operated immediately, and the modules are interchangeable, guaranteeing maximum flexibility. Applications include medical, rangefinding, laser radar, lidar, burn-in racks, ceilometers and optical triggers.