Adjustable fiber laser of pulse width based on electric optic modem

The utility model discloses an adjustable fiber laser of pulse width based on electric optic modem, including laser diode, resonant cavity, control circuit and optical isolator, laser diode's drive end is connected to control circuit's first output, and the input of resonant cavity is connected to laser diode's output, the control end of resonant cavity is connected to control circuit's second output, and optical isolator's input is connected to the output of resonant cavity, control circuit's input is used for receiving outside control signal. Wherein control circuit includes diode driver, electric light driver and main control board, when the main control board detects the external control instruction, produce control signal electric light driver of control and diode driver to pulse width, repetition rate and the power of control output laser. The utility model has the advantages of the output pulse width is adjustable, stable performance, structure are small and exquisite, it is nimble more, convenient to make it use.