中国物理B ›› 2010, Vol. 19 ›› Issue (10): 104208-104208.doi: 10.1088/1674-1056/19/10/104208

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Study on pulse compression in tapered holey fibres

马文文, 李曙光, 尹国冰, 付博, 张磊   

  1. Key Laboratory of Metastable Materials Science and Technology, College of Science, Yanshan University, Qinhuangdao 066004, China
  • 收稿日期:2010-03-21 修回日期:2010-04-07 出版日期:2010-10-15 发布日期:2010-10-15
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant No. 10874145), Specialized Research Fund for the Doctoral Program of Higher Education (Grant No. 20091333110010), the Natural Science Foundation of Hebei Province of China (Grant No. F2009000481), the China Postdoctoral Science Foundation (Grant Nos. 20080440014 and 200902046).

Study on pulse compression in tapered holey fibres

Ma Wen-Wen(马文文), Li Shu-Guang(李曙光), Yin Guo-Bing(尹国冰), Fu Bo(付博), and Zhang Lei(张磊)   

  1. Key Laboratory of Metastable Materials Science and Technology, College of Science, Yanshan University, Qinhuangdao 066004, China
  • Received:2010-03-21 Revised:2010-04-07 Online:2010-10-15 Published:2010-10-15
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant No. 10874145), Specialized Research Fund for the Doctoral Program of Higher Education (Grant No. 20091333110010), the Natural Science Foundation of Hebei Province of China (Grant No. F2009000481), the China Postdoctoral Science Foundation (Grant Nos. 20080440014 and 200902046).

摘要: This paper proposes three kinds of tapered holey fibres with a multi-layer of holes whose pitch of air holes at the end of untapered and tapered are 5.8 μm and 1.8 μm. The central wavelength which locates in the anomalous dispersion region is 1.55 μm. An adaptive split-step Fourier method is numerically used to study the pulse propagation in tapered holey fibres. For the considered convex tapered holey fibre, at a wavelength of 1.55 μm, a compression factor of 136.7 can be achieved by initial width of 800 fs propagation through a length of 0.8 m. It demonstrates that in anomalous dispersion region, pulse can be compressed with the increase of nonlinearity coefficient and the decrease of dispersion coefficient.

Abstract: This paper proposes three kinds of tapered holey fibres with a multi-layer of holes whose pitch of air holes at the end of untapered and tapered are 5.8 μm and 1.8 μm. The central wavelength which locates in the anomalous dispersion region is 1.55 μm. An adaptive split-step Fourier method is numerically used to study the pulse propagation in tapered holey fibres. For the considered convex tapered holey fibre, at a wavelength of 1.55 μm, a compression factor of 136.7 can be achieved by initial width of 800 fs propagation through a length of 0.8 m. It demonstrates that in anomalous dispersion region, pulse can be compressed with the increase of nonlinearity coefficient and the decrease of dispersion coefficient.

Key words: tapered holey fibre, pulse compression, anomalous dispersion

中图分类号:  (Fourier optics)

  • 42.30.Kq
42.65.Re (Ultrafast processes; optical pulse generation and pulse compression) 42.70.Qs (Photonic bandgap materials) 42.81.Dp (Propagation, scattering, and losses; solitons)