A low-threshold efficient KTA OPO by a fiber-coupled diode-end-pumped Nd:YVO4 laser

A low-threshold efficient KTA OPO by a fiber-coupled diode-end-pumped Nd:YVO4 laser
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采用光纤耦合二极管端泵浦 Nd:YVO4 激光器的低阈值高效 KTA OPO

DOI:
10.1007/s11801-010-0078-4
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发表时间:
2010-11
影响因子:
0.9
通讯作者:
--
中科院分区:
物理与天体物理4区
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--
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提出了一种低阈值高效高重复率人眼安全光学参量振荡器(OPO)。OPO是基于x切割非临界相位匹配(NCPM) KTA腔内泵浦由声光(A-O)调q Nd:YVO4激光器。在10 kHz时,得到的最低阈值为0.75 W,信号功率为0.6 W,对应的单脉冲能量为60 μJ,峰值功率为20 kW。调整频率后,1536 nm处的最大输出功率为1.03 W,频率为30 kHz,光-光转换效率为12.26%。运行2h,输出功率波动2.1%。
A low-threshold efficient high-repetition-rate eye-safe optical parametric oscillator (OPO) is presented. The OPO is based on an x-cut non-critically phase-matched (NCPM) KTA intra-cavity pumped by an acousto-optically (A-O) Q-switched Nd:YVO4 laser. At 10 kHz, the lowest threshold of 0.75 W and the signal power of 0.6 W are got, corresponding to the single pulse energy of 60 μJ and the peak power of 20 kW. Tuning the frequency, the maximum output power at 1536 nm is 1.03 W at 30 kHz with an optical-to-optical conversion efficiency of 12.26%. The fluctuation of the output power is 2.1% during 2 h operation.
由二极管端泵浦 Q 开关 Nd:YVO4 激光器驱动的高重复率人眼安全腔内 KTA OPO
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