The High Power LD Driver (HPLDD) module is an efficient module which can drive multi-channel high power laser diodes for the pumping source of fiber laser and optical amplifier and industrial laser applications. This module can accommodate up to eight laser diodes which are connected in series to increase the power consumption efficiency. Each laser diode can be turned on and off individually and its temperature can also be controlled by using the thermistor and TE cooler. In case that the operating current path of laser is shut down due to the malfunction or absence of laser diode, the indication signal will be asserted and the current path of laser will be routed to keep the output of the laser maintaining stably. This module also provides the automatic shutdown function to keep the users safe from the high power radiation and to protect the laser from the overcurrent.

The HPLDD module can be controlled and monitored through the Graphic User Interface (GUI) on a remote PC which is connected via a USB2.0. The operating current of the laser in series and the temperature of each laser can be controlled by using the rotary knob on the board which is linked with the GUI.