Laser Pump Current Research Articles

Dynamic variation of the pulse repetition frequency in a passively mode-locked injection laser

An investigation was made of variation of the pulse repetition frequency in a passively mode-locked injection laser. The generation of ultrashort laser pulses was observed at four harmonics of an external resonator when its length was constant. Dynamic variation of the pulse repetition frequency was readily achieved by changing the laser pump current. Analytical dependences were in good agreement with the experimental results.