Embodiments of the disclosure provide control systems and methods for controlling a pulsed laser diode and a sensing device including a pulsed laser diode. An exemplary control system includes a distance detector configured to generate a distance signal indicating a distance between the pulsed laser diode and an object reflecting pulsed laser beams emitted by the pulsed laser diode. The control system may also include a controller configured to dynamically control power supplied to the pulse laser diode based on the distance signal.