Supercontinuum Generated Micro-structured Fibre for Optical Communications and Medical Applications

 
 
 
  • Abstract
  • Keywords
  • References
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  • Abstract


    This paper proposes a simple highly nonlinear photonic crystal fibre (HN-PCF) for generating supercontinuum (SC) spectrum in telecommunication window. Hexagonal structured HN-PCF with two different air hole diameters was modelled for numerical simulation and various properties of proposed photonic crystal fibres were calculated using finite difference method, and analysed. It has been demonstrated that nonlinear coefficients values of 113 [Wkm]−1 at 1.0 μm, 71 [Wkm]−1 at 1.30 μm and 51 [Wkm]−1 at 1.55 μm are obtainable; with flattened chromatic dispersion. The remarkably low confinement loss of less than 10-5 dB/km is obtainable in the wavelength range of between 1.0 μm and 1.7 μm. Moreover, it has been shown that it is possible to generate wide SC spectrum using 1.0 ps input pulses to achieve longitudinal resolution of 1.5 μm and 1.1 μm at 1.06 μm and 1.31 μm centre wavelengths, respectively. This proposed HN-PCF may be applicable for supercontinuum spectrum generation and all-optical signal processing in the infrared region.

     

     


  • Keywords


    Photonic Crystal Fibre; Chromatic Dispersion; Confinement Loss; Supercontinuum Spectrum

  • References


      [1] Reeves, W. H., et al., Demonstration of ultra-flattened dispersion in photonic crystal fibers. Opt. Express, 2002. 10(14): p. 609-613.

      [2] Begum, F., et al., Photonic Crystal Fiber with Ultra-flattened Chromatic Dispersion, Low Confinement and Bending Losses. IEEJ Trans. on Elec. Inform. and Sys., 2009. 129(6): p. 1039-1046.

      [3] Begum, F., et. al., Supercontinuum generation in square photonic crystal fiber with nearly zero ultra-flattened chromatic dispersion and fabrication tolerance analysis. Opt. Comm., 2011. 284(4): p. 965-970.

      [4] Yamamoto, T., et al., Supercontinuum generation at 1.55 μm in a dispersion-flattened polarization- maintaining photonic crystal fiber. Opt. Express, 2003. 11(13): p. 1537–1540.

      [5] Saitoh, K., et al., Highly nonlinear dispersion-flattened photonic crystal fibers for supercontinuum generation in a telecommunication window. Opt. Express, 2004. 12(10): p. 2027–2032.

      [6] Jung, E. J., et al., Spectrally-sampled OCT for sensitivity improvement from limited optical power. Opt. Express, 2008. 16(22): p. 17457-17467,

      [7] Shibata, H., et al., Imaging of spectral-domain optical coherence tomography using a superluminescent diode based on InAs quantum dots emitting broadband spectrum with Gaussian-like shape. Japanese Jour. of Appl. Phys., 2015. 54(4S): p. 04DG07-1-04DG07-5.

      [8] Calmano, T., et al., Nd:YAG waveguide laser with 1.3 W output power, fabricated by direct femtosecond laser writing. Appl. Phys. B, 2010. 100(1): p. 131–135,

      [9] Zaytsev, A., et al., Supercontinuum generation by noise-like pulses transmitted through normally dispersive standard single-mode fibers. Opt. Express, 2013. 21(13): p. 16056-16062.

      [10] Aguirre, A. D., et al., Continuum generation in a novel photonic crystal fiber for ultrahigh resolution optical coherence tomography at 800 nm and 1300 nm. Opt. Express, 2006. 14(3): p. 1145-1160,

      [11] Namihira, Y., et al., Design of Highly Nonlinear Dispersion Flattened Hexagonal Photonic Crystal Fibers for Dental Optical Coherence Tomography Applications. Opt. Review, 2012. 19(2): pp. 78–81.

      [12] Begum, F., et al., Design and analysis of novel highly nonlinear hexagonal photonic crystal fibers with ultra-flattened chromatic dispersion. Opt. Comm., 2009. 282(7): p. 1416-1421.

      [13] Agrawal, G., Nonlinear Fiber Optics, 2nd Edition, San Diego, CA, Academic Press, 1995.

      [14] Poletti, F., et al., Inverse design and fabrication tolerances of ultra-flattened dispersion holey fibers. Opt. Express, 2005. 13(10), p. 3728– 3736.

      Fercher, A. F., et al., Optical coherence tomography-principles and applications. Rep. on Prog. Phys., 2003. 66(2): p. 239-303.

 

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Article ID: 18867
 
DOI: 10.14419/ijet.v7i3.7.18867




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