• Frontiers of Optoelectronics
  • Vol. 12, Issue 2, 165–173 (2019)
Rekha SAHA, Md. Mahbub*, Md. Ekhlasur, and Himadri Shekhar
Author Affiliations
  • Electronics and Communication Engineering Discipline, Khulna University, Khulna 9208, Bangladesh
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    Abstract

    High birefringence with low confinement loss photonic crystal fiber (PCF) has significant advantages in the field of sensing, dispersion compensation devices, nonlinear applications, and polarization filter. In this report, two different models of PCFs are presented and compared. Both the models contain five air holes rings with combination of circular and elliptical air holes arrangement. Moreover, the elliptical shaped air holes polarization and the third ring air holes rotational angle are varied. To examine different guiding characteristics, finite element method (FEM) with perfectly matched layer (PML) absorbing boundary condition is applied from 1.2 to 1.8 μm wavelength range. High birefringence, low confinement loss, high nonlinearity, and moderate dispersion values are successfully achieved in both the PCFs models. Numeric analysis shows that model-1 gives higher birefringence (2.75 × 10–2) and negative dispersion ( – 540.67 ps/(nm·km)) at 1.55 μm wavelength. However, model-2 gives more small confinement loss than model-1 at the same wavelength. In addition, the proposed design demonstrates the variation of rotation angle has great impact to enhance guiding properties especially the birefringence.
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    Rekha SAHA, Md. Mahbub, Md. Ekhlasur, Himadri Shekhar. Design and analysis of high birefringence and nonlinearity with small confinement loss photonic crystal fiber[J]. Frontiers of Optoelectronics, 2019, 12(2): 165
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    Received: May. 30, 2018
    Accepted: Jul. 17, 2018
    Posted: Feb. 1, 2019
    Published Online: Nov. 14, 2019
    The Author Email: Mahbub Md. (mahbub.eceku@yahoo.com)