Discharge device and high power semiconductor laser

The utility model relates to a discharge device and high power semiconductor laser. High -power semiconductor laser includes discharge device, and wherein discharge device includes power, the first transistor, second transistor and control circuit, the power anodal with the drain electrode of the first transistor is connected, the source electrode of the first transistor is used for being connected with the anodal of laser diode, the negative pole of power be used for with laser diode's negative pole is connected, the grid of the first transistor with control circuit's first output is connected, the drain electrode of second transistor with the source connection of the first transistor, the source electrode of second transistor be used for with laser diode's negative pole is connected, thegrid of second transistor with control circuit's second output is connected. Discharge device and high power semiconductor laser can ensure the remaining the electric quantity and can put fast of load end of laser instrument