二极管泵浦双掺杂YAG微片自调Q激光器

LD pumped Cr^(4+), Nd^(3+):YAG monolithic microchip self Q-switched laser

利用激光二极管泵浦双掺杂YAG微片晶体,在连续泵浦时获得了重复频率为2.78kHz,脉冲宽度为6ns的自调Q激光输出。并通过预泵浦加脉冲调制电流的方法,实现可控重复率的自调Q脉冲输出。与外腔式自调Q微片激光器相比,这种一体化微片激光器具有更高的转换效率、更窄的输出脉冲宽度和更高的重复频率,同时结构更为简单紧凑,易于调整。

Using the Cr4+, Nd3+:YAG microchip pumped by LD, the self Qswitched laser pulses with the repetition rate of 2.78kHz and pulse width of 6ns are obtained in the CW case. Through the prepumping with the pulsed modulated current the self Qswitched output laser with a controllable repetition rate is realized. Compare with the extracavity selfQswitched microchip laser the monolithic microchip laser possesses higher transform efficiency, more narrow pulse width and high repetition rate. Also such a laser constructed compact, and easy to be adjusted.