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Nonlinear copropagation of two optical pulses of different frequencies in photonic crystal fibers

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Abstract

A theoretical investigation of the nonlinear copropagation of two optical pulses of different frequencies in a photonic crystal fiber is presented. Different phenomena are observed depending on whether the wavelength of the signal pulse is located in the normal or the anomalous dispersion region. In particular, it is found that the phenomenon of pulse trapping occurs when the signal wavelength is located in the normal dispersion region while the pump wavelength is located in the anomalous dispersion region. The signal pulse suffers cross-phase modulation by the Raman shifted soliton pulse and it is trapped and copropagates with the Raman soliton pulse along the fiber. As the input peak power of the pump pulse is increased, the red-shift of the Raman soliton is considerably enhanced with the simultaneous further blue-shift of the trapped pulse to satisfy the condition of group velocity matching.

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Authors and Affiliations

  1. Laboratory for High Intensity Optics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai, 201800, China

    C. Cheng, X. Wang, Z. Fang & B. Shen

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  1. C. Cheng
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  2. X. Wang
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  3. Z. Fang
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  4. B. Shen
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Correspondence to C. Cheng.

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PACS

42.65.Tg; 42.81.Dp

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Cheng, C., Wang, X., Fang, Z. et al. Nonlinear copropagation of two optical pulses of different frequencies in photonic crystal fibers. Appl. Phys. B 80, 291–294 (2005). https://doi.org/10.1007/s00340-004-1711-3

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  • DOI: https://doi.org/10.1007/s00340-004-1711-3

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