LASER DEVICE AND METHOD FOR OPERATION OF A SEMICONDUCTOR LASER

Abstract

A laser device (1) comprising a semiconductor laser (2) and a driver circuit (3) configured to operate the semiconductor laser (2) in pulsed mode is described, wherein: - the driver circuit (3) includes a switch (T1) switchable between an open and a closed state; - the driver circuit (3) includes a first capacitor (C1) coupled to a power supply (5); - the switch (T1) is coupled to the first capacitor (C1); - the driver circuit (3) includes a second capacitor (C2); - a p-contact (22) of the semiconductor laser (2) is capacitively coupled to the switch (T1) via the second capacitor (C2); - in the closed state of the switch (T1), the first capacitor (C1) is discharged via the second capacitor (C2) and the semiconductor laser (2) to generate a laser pulse; and - in the open state of the switch (T1), the second capacitor (C2) is unloaded.Furthermore, a method for operating a semiconductor laser (2) is specified.