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上海光学精密机械研究所基于Nd:YVO_4增益介质和反射式SESAM被动锁模技术,成功实现了5.7 ps,2.62 w,105 MHz的连续锁模脉冲输出。实验中抽运源是波长为808 nm、芯径为400μm的常规激光二极管(LD),Nd:YVO_4晶体尺寸为3 mm×3 mm×5 mm,工作温度为18℃,谐振腔为一个典型的Z型结构,腔长为143.5 cm。激光束分两路输出,输出镜单次透过率为4%。输入输出功率曲线如图1所示,其中QML为调Q锁模,CML为连续锁模,当抽运功率
Based on the Nd: YVO_4 gain medium and the reflective SESAM passive mode-locking technology, Shanghai Institute of Optics and Fine Mechanics succeeded in achieving a continuous mode-locked pulse output of 5.7 ps, 2.62 w and 105 MHz. The pumping source in this experiment is a conventional laser diode (LD) with a wavelength of 808 nm and a core diameter of 400 μm. The Nd: YVO 4 crystal has a size of 3 mm × 3 mm × 5 mm and a working temperature of 18 ° C. The cavity is a typical Z-type structure, length of 143.5 cm. The laser beam is divided into two outputs, output single pass rate of 4%. Input and output power curve shown in Figure 1, which QML Q-mode Q-mode, CML for the continuous mode-locked, when the pumping power