• Design and analysis of broadband supercontinuum generation in highly nonlinear LiGaSe$_2$-based photonic crystal fibre

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      https://www.ias.ac.in/article/fulltext/pram/095/0145

    • Keywords

       

      Nonlinear optics; photonic crystal fibre; nonlinearity; finite element method; chromatic dispersion

    • Abstract

       

      A numerical investigation of LiGaSe$_2$-based photonic crystal fibre for broad supercontinuum spectrum at −30 dB intensity level has been studied in this paper. The proposed structure is simulated by the finite element method and provides a zero-dispersion wavelength of 2.46 μm. Higher-order dispersion coefficients are considered to generate a supercontinuum spectrum spanning 2.15–14.6 μm. An input pulse of 30 fs is injected into a smalllength photonic crystal fibre with a low input power of 600 W at a pump wavelength of 2.5 μm. This mid-infraredbroad spectrum has potential applications in optical coherence tomography, spectroscopy and medical bio-imaging field.

    • Author Affiliations

       

      MONIKA KIRORIWAL1 POONAM SINGAL

      1. Electronics & Communication Department, Deenbandhu Chhotu Ram University of Science & Technology, Sonepat 131 039, India
    • Dates

       
  • Pramana – Journal of Physics | News

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      Posted on July 25, 2019

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