光纤激光器
材料科学
光学
铥
飞秒
色散(光学)
色散位移光纤
飞秒脉冲整形
激光器
纤维
光纤布拉格光栅
脉冲持续时间
脉搏(音乐)
光电子学
兴奋剂
光纤传感器
物理
复合材料
探测器
作者
Shaoxiang Chen,Yuhao Chen,Kun Liu,Raghuraman Sidharthan,Huizi Li,Chang Chen,Qi Jie Wang,Dingyuan Tang,Seongwoo Yoo
出处
期刊:Optics Letters
[The Optical Society]
日期:2021-07-26
卷期号:46 (15): 3637-3637
被引量:12
摘要
We propose a parabolic W-type thulium-doped fiber for the 1.7 µm high-energy femtosecond pulsed laser. Despite its attractive normal dispersion, the fiber offers high gain in 1.7 µm region thanks to its distributed short-pass filtering effect. With a proper dispersion management in an all-fiber chirped pulse amplification (CPA) scheme, we demonstrate so far the highest pulse energy of 128.0 nJ in a stable pulse of 174 fs in the 1.7–1.8 µm region, which marks above an order of magnitude improvement in pulse energy while exhibiting the shortest pulse duration among fiber-based CPA works at 1.7 µm. Hence, we provide a pathway to an energy scalable and efficient femtosecond laser at 1.7 µm via a compact and elegant all-fiber solution.
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