Picosecond and sub-picosecond flat-top pulse generation using uniform long-period fiber gratings

被引:86
作者
Park, Y. [1 ]
Kulishov, M.
Slavik, R.
Azana, J.
机构
[1] INRS, Montreal, PQ H5A 1K6, Canada
[2] HTA Photomask Inc, San Jose, CA 95131 USA
[3] Acad Sci Czech Republ, Inst Radio Engn & Elect, CR-18251 Prague, Czech Republic
[4] Adtek Photomask Inc, Montreal, PQ H4T 1J6, Canada
[5] McGill Univ, Photon Syst Grp, Montreal, PQ H3A 2A7, Canada
关键词
D O I
10.1364/OE.14.012670
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
We propose a novel linear filtering scheme based on ultrafast all-optical differentiation for re-shaping of ultrashort pulses generated from a mode-locked laser into flat-top pulses. The technique is demonstrated using simple all-fiber optical filters, more specifically uniform long period fiber gratings (LPGs) operated in transmission. The large bandwidth typical for these fiber filters allows scaling the technique to the sub-picosecond regime. In the experiments reported here, 600-fs and 1.8-ps Gaussian-like optical pulses (@ 1535 nm) have been re-shaped into 1-ps and 3.2-ps flat-top pulses, respectively, using a single 9-cm long uniform LPG. (C) 2006 Optical Society of America.
引用
收藏
页码:12670 / 12678
页数:9
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