中国物理B ›› 2019, Vol. 28 ›› Issue (10): 104204-104204.doi: 10.1088/1674-1056/ab3f25

• ELECTROMAGNETISM, OPTICS, ACOUSTICS, HEAT TRANSFER, CLASSICAL MECHANICS, AND FLUID DYNAMICS • 上一篇    下一篇

Numerical investigation on coherent mid-infrared supercontinuum generation in chalcogenide PCFs with near-zero flattened all-normal dispersion profiles

Jie Han(韩杰), Sheng-Dong Chang(常圣东), Yan-Jia Lyu(吕彦佳), Yong Liu(刘永)   

  1. 1 State Key Laboratory of Electronic Thin Film and Integrated Devices, School of Optoelectronic Science and Engineering, University of Electronic Science and Technology of China, Chengdu 610054, China;
    2 School of Environment, 3480 University Street, McGill University, Montréal H3A 0E9, Canada
  • 收稿日期:2019-04-11 修回日期:2019-07-23 出版日期:2019-10-05 发布日期:2019-10-05
  • 通讯作者: Jie Han E-mail:jiehan@std.uestc.edu.cn
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant Nos. 61421002 and 61435003).

Numerical investigation on coherent mid-infrared supercontinuum generation in chalcogenide PCFs with near-zero flattened all-normal dispersion profiles

Jie Han(韩杰)1, Sheng-Dong Chang(常圣东)2, Yan-Jia Lyu(吕彦佳)1, Yong Liu(刘永)1   

  1. 1 State Key Laboratory of Electronic Thin Film and Integrated Devices, School of Optoelectronic Science and Engineering, University of Electronic Science and Technology of China, Chengdu 610054, China;
    2 School of Environment, 3480 University Street, McGill University, Montréal H3A 0E9, Canada
  • Received:2019-04-11 Revised:2019-07-23 Online:2019-10-05 Published:2019-10-05
  • Contact: Jie Han E-mail:jiehan@std.uestc.edu.cn
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant Nos. 61421002 and 61435003).

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摘要： We design a novel all-normal flat near-zero dispersion chalcogenide photonic crystal fiber (PCF) for generating mid-infrared (MIR) supercontinuum (SC). The proposed PCF with a core made of As2Se3 glass and uniform air holes in the cladding is selectively filled with As2S5 glass. By carefully engineering the PCF with an all-normal flat near-zero dispersion profile, the anomalous-dispersion soliton effect is reduced, thus enabling broadband highly coherent SC to be generated. We also investigate the influence of the pulse parameters on the SC generation. Broadband SC covering 1.4 μm-10 μm with perfect coherence is achieved by pumping the proposed 3-cm-long PCF with 3-μm 100-fs pulses. The results provide a potential all-fiber realization of the broadband coherent MIR-SC.

关键词: supercontinuum generation, photonic crystal fiber, nonlinear optics

Abstract: We design a novel all-normal flat near-zero dispersion chalcogenide photonic crystal fiber (PCF) for generating mid-infrared (MIR) supercontinuum (SC). The proposed PCF with a core made of As2Se3 glass and uniform air holes in the cladding is selectively filled with As2S5 glass. By carefully engineering the PCF with an all-normal flat near-zero dispersion profile, the anomalous-dispersion soliton effect is reduced, thus enabling broadband highly coherent SC to be generated. We also investigate the influence of the pulse parameters on the SC generation. Broadband SC covering 1.4 μm-10 μm with perfect coherence is achieved by pumping the proposed 3-cm-long PCF with 3-μm 100-fs pulses. The results provide a potential all-fiber realization of the broadband coherent MIR-SC.

Key words: supercontinuum generation, photonic crystal fiber, nonlinear optics

中图分类号:  (Fiber optics)

  • 42.81.-i
42.65.-k (Nonlinear optics) 42.65.Sf (Dynamics of nonlinear optical systems; optical instabilities, optical chaos and complexity, and optical spatio-temporal dynamics)