Laser diode driver

Wavelength Electronics, Bozeman, MT, has redesigned its laser diode driver used in fiber laser pumping and for materials processing and industrial welding and cutting applications.

The PLD10000 now has a new compact heatsink and fan shroud, and improved internal heat dissipation capability. The driver is capable of driving lasers with up to 10.0 A and compliance voltage up to 27.5 V. It can operate from a single 5 V power supply, or to accommodate high compliance lasers driven from a separate power supply up to 30 V. It can operate in constant current mode for highly stable optical output, or with a photodiode feedback loop. Two photodiode ranges provide variable sensitivities for optimum operation, and excellent output stability (<200 ppm) is maintained whether operating in constant current or constant power mode. Built-in safety features include latching current limit, slow start circuit, and a mechanical shorting relay.