LD抽运被动调Q Nd:YAG/GdV04内腔式喇曼激光器

为了研究LD抽运的被动调Q Nd:YAG/GdVO4内腔式喇曼激光器的输出特性,采用Nd:YAG作为激光介质,GdV04晶体作为喇曼介质,分别用两块不同初始透过率的Cr<'4+>:YAG晶体,得到并比较了采用不同初始透过率的Cr<'4+>:YAG晶体时被动调Q喇曼激光器的性能.测量了平均输出功率、脉冲宽度和脉冲重复率随...

LD pumped passively Q-switched Nd:YAG/GdVO4 intracavity Raman laser

In order to study of output characteristics of a laser diode pumped passively Q-switched Nd:YAG/GdVO4 intracavity Raman laser, taking Nd:YAG as the gain crystal, GdVO4 as the Raman medium, and two Cr4+:YAG crystals with different initial transmissions as the saturable absorber respectively, the passively Q-switched operation of the Nd:YAG/GdVO4 Raman laser at 1174nm was investigated and compared. The average power, pulse energy, pulse width and pulse repletion rate of diode pumped passively Q-switched Nd:GdVO4 self-Raman laser at 1174nm with respect to the injected pump power were measured. The obtained maximum output average power was 150.6mW with respect to injected power of 5.2W and the corresponding conversion efficiency was 2.9% in the case of the initial transmission of 91%. The theoretical results were obtained according to the rate equations, in which the Gaussian distribution of the intracavity photon density of the fundamental and Raman laser and the initial population inversion density were taken into account. The obtained theoretical results were in agreement with the experimental results on the whole.