Generation of 103 fs mode-locked pulses by a gain linewidth-variable Nd,Y:CaF2 disordered crystal
Generation of 103 fs mode-locked pulses by a gain linewidth-variable Nd,Y:CaF2 disordered crystal
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通过增益线宽可变的 Nd,Y:CaF2 无序晶体生成 103 fs 锁模脉冲
DOI：
10.1364/ol.39.001737
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发表时间：
2014-04-01
期刊：
影响因子：
3.6
通讯作者：
Xu, J.
中科院分区：
文献类型：
--
作者：
Qin, Z. P.;Xie, G. Q.;Xu, J.
据我们所知，我们首次展示了一种二极管泵浦被动锁模飞秒Nd,Y:CaF₂无序晶体激光器。通过选择合适的Y掺杂浓度，从增益线宽可变的Nd,Y:CaF₂晶体中获得了31nm的宽荧光谱线宽度。以Nd,Y:CaF₂无序晶体作为增益介质，锁模激光器产生的脉冲宽度短至103fs，平均输出功率为89mW，重复频率为100MHz。据我们所知，这是迄今为止从Nd掺杂晶体激光器中产生的最短脉冲。研究结果表明，Nd,Y:CaF₂无序晶体将是高峰值功率激光器重复啁啾脉冲放大增益介质的一种潜在替代物。（C）2014美国光学学会
We have demonstrated a diode-pumped passively mode-locked femtosecond Nd, Y:CaF2 disordered crystal laser for the first time to our knowledge. By choosing appropriate Y- doping concentration, a broad fluorescence linewidth of 31 nm has been obtained from the gain linewidth-variable Nd, Y: CaF2 crystal. With the Nd, Y:CaF2 disordered crystal as gain medium, the mode-locked laser generated pulses with pulse duration as short as 103 fs, average output power of 89 mW, and repetition rate of 100 MHz. To our best knowledge, this is the shortest pulse generated from Nd-doped crystal lasers so far. The research results show that the Nd, Y:CaF2 disordered crystal will be a potential alternative as gain medium of repetitive chirped pulse amplification for high-peak-power lasers. (C) 2014 Optical Society of America