A continuously tunable sequential Stokes Raman laser
A continuously tunable sequential Stokes Raman laser
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连续可调谐连续斯托克斯拉曼激光器
DOI：
10.1109/jqe.1986.1073036
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发表时间：
1986
影响因子：
2.5
通讯作者：
N. Levinos
中科院分区：
文献类型：
--
作者：
P. Rabinowitz;B. Perry;N. Levinos
利用脉冲染料激光在氢气中的连续拉曼散射，获得了1-12 μ m波段的连续可调谐相干辐射。使用多程池提高了拉曼增益，在0.9 ~ 5μm波长范围内，总的量子转换效率至少为45%。在5 μm波段，获得了重复频率为10 Hz、脉冲宽度为7 ns、能量为1 mj的激光输出。固有的四波混频启动的顺序斯托克斯转换到红外，并产生单横模（TEM 00）辐射在0.2 cm-1的带宽。我们已经开发了一个非线性模型的过程中，包括衍射，四波混频，和时间脉冲形状的影响，并给出与实验一致的数值输出。
We have obtained continuously tunable coherent radiation in the 1-12 \mu m region via sequential Raman scattering of pulsed-dye-laser radiation in hydrogen. A multiple-pass-cell was used to enhance the Raman gain and produce an overall quantum conversion efficiency of at least 45 percent in the wavelength range from 0.9 to 5μm. At 5 μm, an energy output of 1 mj in a 7 ns pulse at a 10 Hz repetition rate has been obtained. Inherent four-wave mixing initiates the sequential Stokes conversion to the infrared and produces single transverse mode (TEM 00 ) radiation in a 0.2 cm-1bandwidth. We have developed a nonlinear model of the process that includes the effects of diffraction, four-wave mixing, and temporal pulse shape and gives numerical outputs in agreement with experiment.