Buffering and trapping ultrashort optical pulses in concatenated Bragg gratings.
Buffering and trapping ultrashort optical pulses in concatenated Bragg gratings.
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DOI：
10.1364/ol.38.005047
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发表时间：
2013-10
期刊：
影响因子：
3.6
通讯作者：
Shenhe Fu;Yikun Liu;Yongyao Li;Liyan Song;Juntao Li;B. Malomed;Jianying Zhou
中科院分区：
文献类型：
--
作者：
Shenhe Fu;Yikun Liu;Yongyao Li;Liyan Song;Juntao Li;B. Malomed;Jianying Zhou
提出了超短光脉冲的强延迟，包括级联Bragg光栅(BG)结构中的Bragg孤子形式的减速和停滞。利用非线性效应，在通过缺陷链接到均匀光栅的啁啾BG段中执行对脉冲的处理。超短脉冲的存储对于输入场强度的变化是非常稳健的，这表明在这种结构中存储超快光脉冲是可行的。物理估计是为用硅写成的BGS而产生的。
Strong retardation of ultrashort optical pulses, including their deceleration and stoppage in the form of Bragg solitons in a cascaded Bragg grating (BG) structure, is proposed. The manipulations of the pulses are carried out, using nonlinear effects, in a chirped BG segment which is linked, via a defect, to a uniform grating. The storage of the ultrashort pulses is shown to be very robust with respect to variations of the input field intensity, suggesting the feasibility of storing ultrafast optical pulses in such a structure. Physical estimates are produced for the BGs written in silicon.