GENERATION AND MEASUREMENT OF OPTICAL PULSES AS SHORT AS 16 FS
GENERATION AND MEASUREMENT OF OPTICAL PULSES AS SHORT AS 16 FS
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DOI：
10.1063/1.94957
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发表时间：
1984-01-01
影响因子：
4
通讯作者：
IPPEN, EP
中科院分区：
文献类型：
--
作者：
FUJIMOTO, JG;WEINER, AM;IPPEN, EP
目前，超短光脉冲的产生正在取得相当大的进展。将亚皮秒被动锁模染料激光技术I扩展到碰撞脉冲（CPM）环形几何结构2是第一种产生短于100 fs的可靠直接脉冲源的方法。现在有了非线性光纤技术3.通过压缩由各种其他激光器发射的皮秒脉冲，可以达到这个时域。脉冲缩短到37 fs最近也实现了放大CPM染料激光脉冲的参数散射。6然而，迄今为止最短的脉冲（30 fs）是通过光纤压缩来自基于CPM的系统的放大脉冲而实现的。[7]我们在此报告将后一种技术扩展到产生更短（16 fs）的脉冲。这些脉冲的中心波长约为620 nm，只有8个光学周期。飞秒脉冲源为我们的压缩实验是一个CPM环形染料闪烁器2产生的脉冲短至55 fs，如前所述。8，9我们发现这在某种程度上取决于锁模染料（DODCI）的年龄，在操作一周左右后，脉冲持续时间延长到60-65 fs。从这个振荡器的单脉冲选择和放大的高功率，飞秒染料放大器链的前两个阶段在10 Hz的重复率。图10脉冲经过两级放大后，
Considerable progress is currently being made in the generation of ultrashort light pulses. Extension of subpicosecond, passively mode-locked dye laser technology I to the colliding-pulse (CPM) ring geometry2 was the first method to result in a reliable, direct source of pulses shorter than 100 fs. Now with nonlinear optical fiber techniques3. 4 it is possible to reach this time domain5 by compressing the picosecond pulses emitted by a variety of other lasers. Pulse shortening to 37 fs has also recently been achieved by parametric scattering of amplified CPM dye laser pulses. 6 Nevertheless, the shortest pulses to date (30 fs) have been achieved by fiber compression of amplified pulses from a CPM based system. 7 We report here extension of this latter technique to the generation of yet shorter (16 fs) pulses. These pulses, with a center wavelength of about 620 nm, are comprised of only eight optical periods.The femtosecond pulse source for our compression experiments is a CPM ring dye oscillator2 which produces pulses as short as 55 fs, as previously reported. 8, 9 We have found this to depend somewhat upon the age of the modelocking dye (DODCI), with pulse duration lengthening to 60-65 fs after a week or so of operation. Single pulses from this oscillator are selected and amplified at a repetition rate of 10 Hz by the first two stages of a high-power, femtosecond dye amplifier chain. 10 The pulses, after two stages of ampli-