156 micro-J ultrafast Thulium-doped fiber laser
156 micro-J ultrafast Thulium-doped fiber laser
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156微焦耳超快掺铥光纤激光器
DOI：
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发表时间：
2013
期刊：
影响因子：
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通讯作者：
Jian Liu
中科院分区：
文献类型：
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作者：
P. Wan;Lihmei Yang;Jian Liu
成功研制了一种高能、高功率、超快掺铥光纤激光器系统。脉冲能量为156 μJ，平均功率为15.6 W。该激光系统由锁模2020nm种子振荡器和多级功率放大器组成。该种子包含30 m长的色散补偿光纤，发射光谱带宽为8 nm的微啁啾脉冲。锁模稳定且自启动。种子振荡器的重复频率为2.5 MHz。用异常色散光纤将种子脉冲拉伸至320 ps。采用AOM作为脉冲拾取器降低重复率。采用两级前置放大器将脉冲能量提升至3 μJ。在100 kHz的重复频率下，从功率放大器末级获得了高达156 μJ的脉冲能量。脉冲压缩后的脉冲持续时间为780秒。在这种低重复率下，还实现了高OSNR和低背景噪声。
A high energy, high power ultrafast Tm doped fiber laser system was successfully developed. Pulse energy of 156 μJ and average power of 15.6 W were achieved. The laser system consisted of a mode-locked 2020 nm seed oscillator and multiple-stage power amplifiers. The seed included 30 m-long dispersion compensating fiber and emitted slightly chirped pulses with spectrum bandwidth of 8 nm. The mode-locking was stable and self-started. Repetition rate of seed oscillator was 2.5 MHz. The seed pulses were stretched with anomalous dispersion fiber to the duration of 320 ps. An AOM was used as a pulse picker to lower the repetition rate. A two-stage pre-amplifier was used to boost the pulse energy to 3 μJ. Pulse energies of up to 156 μJ were obtained from the final stage of power amplifier at a repetition rate of 100 kHz. Pulse durations of 780 fs were obtained after pulse compression. High OSNR and low background noise were also achieved at this low repetition rate.
三脉冲光子回波峰移光谱作为蛋白质折叠灵活性和构象异质性的探针。
影响因子：
2.8
作者：
Gibson,EmilyA;Shen,Zhaochuan;Jimenez,Ralph
通讯作者：
Jimenez,Ralph