School of Information Science and Engineering and Shandong Provincial Key Laboratory of Laser Technology and Application, Shandong University, Jinan 250100, China.
Opt Lett. 2012 Oct 1;37(19):4113-5. doi: 10.1364/OL.37.004113.
A diode-pumped, actively Q-switched dual-wavelength laser employing Nd:YVO(4) self-Raman emission at 1524 nm and undoped GdVO(4) Raman emission at 1522 nm is demonstrated. With a pump power of 21.5 W and pulse repetition frequency of 20 kHz, a maximum dual-wavelength output power of 1.62 W was obtained, comprising a 0.54 W, 1522 nm Raman component and 1.08 W, 1524 nm self-Raman component. The corresponding dual-wavelength Raman pulse width was 5.6 ns. The experimental results indicate that this laser, with quite small wavelength separation, was effective by virtue of simultaneous self-Raman and Raman shifts.
我们演示了一种采用 Nd:YVO(4) 自拉曼发射 1524nm 和未掺杂 GdVO(4) 拉曼发射 1522nm 的二极管泵浦、主动调 Q 双波长激光器。在 21.5W 的泵浦功率和 20kHz 的脉冲重复频率下，获得了最大的双波长输出功率 1.62W，其中包括 0.54W 的 1522nm 拉曼分量和 1.08W 的 1524nm 自拉曼分量。相应的双波长拉曼脉冲宽度为 5.6ns。实验结果表明，这种双波长激光器由于同时存在自拉曼和拉曼频移，波长分离较小，因此非常有效。
