Synchronized generation of 1534 and 1572 nm by the mixed optical parameter oscillation
Synchronized generation of 1534 and 1572 nm by the mixed optical parameter oscillation
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DOI：
10.1002/lapl.201110004
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发表时间：
2011-05
影响因子：
1.7
通讯作者：
H. T. Huang;J. L. He;S. Liu;F. Q. Liu;X. Q. Yang;H. Yang;Y. Yang;H. Yang
中科院分区：
文献类型：
--
作者：
H. T. Huang;J. L. He;S. Liu;F. Q. Liu;X. Q. Yang;H. Yang;Y. Yang;H. Yang
利用混合光参量振荡（OPO）技术，在抗灰迹KTP（GTR-KTP）和KTA晶体中实现了1534和1572 nm的双波长同步输出。这两种晶体都插入到二极管泵浦的Nd：YAG/Cr ~（4+）：YAG基腔中，它们的Y轴相互垂直。这可以消除两个OPO过程在基波辐射中的竞争。此外，GTR-KTP和KTA的长度之间的比率也被专门设计为满足相同的OPO阈值。成功实现了1534 ~ 1572 nm波长范围内功率比为1：1的同步双波长激光输出。当LD泵浦功率为7 W时，获得了460 mW的最大输出功率，相应的脉冲宽度和重复频率分别为3.9ns和5.5kHz。这种混合转换为多波长激光的产生打开了一扇新的大门。
A novel nonlinear frequency conversion process was demonstrated to realize the synchronized dual-wavelength emissions at 1534 and 1572 nm by the mixed optical parametric oscillation (OPO) conversion in gray-tracking-resistance KTP (GTR-KTP) and KTA crystals. Both the two crystals were inserted into the diode-pumped Nd:YAG/Cr4+:YAG fundamental resonator, with their Y axes perpendicular to each other. This could eliminate the competition of the two OPO processes in fundamental radiation. Furthermore, the ratio between the length of GTR-KTP and KTA has also been specially designed to satisfy the same OPO thresholds. The synchronized dual-wavelength lasing with the power ratio of 1:1 between 1534 and 1572 nm was successfully realized. At an incident LD pump power of 7 W, the maximum total output power of 460 mW was achieved, with the corresponding pulse width and repetition rate measured to be 3.9 ns and 5.5 kHz, respectively. This mixed conversion opens a new door for the multi-wavelength lasing.