Efficient femtosecond mode-locked Nd,Y:SrF2 laser
Efficient femtosecond mode-locked Nd,Y:SrF2 laser
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DOI：
10.7567/apex.7.092704
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发表时间：
2014-08
影响因子：
2.3
通讯作者：
Long Wei;Hainian Han;Wenlong Tian;Jiaxing Liu;Zhaohua Wang;Zheng Zhu;Yulei Jia;L. Su;J. Xu
中科院分区：
文献类型：
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作者：
Long Wei;Hainian Han;Wenlong Tian;Jiaxing Liu;Zhaohua Wang;Zheng Zhu;Yulei Jia;L. Su;J. Xu
这封信介绍了一种使用 Nd 和 Y 共掺 SrF2 晶体作为增益介质的高效飞秒锁模激光器。在1 W泵浦功率下获得了中心波长为1057 nm的332 fs脉冲，重复率为89.8 MHz，谱宽为4.3 nm，锁模输出功率高达395 mW，对应的光光效率为39.5%，斜率效率为69%。据我们所知，这是飞秒掺钕晶体激光器中最高的光学效率。
An efficient femtosecond mode-locked laser using Nd and Y-codoped SrF2 crystal as the gain medium is presented in this letter. A 332 fs pulse centered at 1057 nm with a repetition rate of 89.8 MHz, a spectral width of 4.3 nm, and a mode-locked output power of up to 395 mW has been obtained under 1 W pump power, corresponding to an optical-to-optical efficiency of 39.5% and a slope efficiency of 69%. To the best of our knowledge, this is the highest optical efficiency in femtosecond Nd-doped crystal lasers.