Controlling the width of a femtosecond continuum generated in a small-diameter fibre
Controlling the width of a femtosecond continuum generated in a small-diameter fibre
复制标题
控制小直径光纤中产生的飞秒连续谱的宽度
DOI：
10.1070/qe2002v032n01abeh002117
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发表时间：
2002
影响因子：
0.9
通讯作者：
N V Fateev
中科院分区：
文献类型：
--
作者：
Sergey M Kobtsev;S V Kukarin;N V Fateev
本文首次从实验上实现了在腰径为3 μm的锥形掺锗石英光纤中产生的连续谱宽度的控制。通过改变光纤群速度色散零点附近啁啾飞秒泵浦脉冲的波长来控制连续谱的宽度。通过将80 fs，0.6 nJ输入脉冲的中心波长从789 nm调谐到847 nm，−20 dB水平的连续谱的宽度从98 nm变化到790 nm。
The control of the width of a continuum generated in a tapered germanium-doped silica fibre with the waist diameter of ~3 μm is experimentally demonstrated for the first time. The width of the continuum was controlled by varying the wavelength of chirped femtosecond pump pulses near the zero-point of the group velocity dispersion of the fibre. The width of the continuum at the −20-dB level was varied from 98 to 790 nm by tuning the central wavelength of 80-fs, 0.6-nJ input pulses from 789 to 847 nm.