It can be used to measure the peak power of diode laser directly. with the characters of digital display, high accuracy, large power range, wide pulse width and output port of waveform monitor.

Transmitter is the device which changes electrical pulse signal into optical pulse signal, and then transmit the optical signal in wave form by laser diode or light-emitting diode.

A method based on pulse injection was put forward to test the light-current-voltage (LIV) characteristics of laser diode (LD), and a new type of pulse measurement system was developed.