Now showing items 1-6 of 6

  • A comparative analysis of two different PCF structures for gas sensing application 

    Arif, Md. Faizul Huq; Ahmed, Kawsar; Asaduzzaman, Sayed (IEEE Xplore, 2016-07-11)
    Toxic or Flammable gases and leakage of the gas lines can be detected by photonic crystal fibers for avoiding pollution, explosion or fire. Two different structures of hollow core based Photonic crystal fiber (HC-PCF) has ...
  • Numerical analysis of O-PCF structure for sensing applications with high relative sensitivity 

    Ahmed, Kawsar; Asaduzzaman, Sayed; Arif, Md. Faizul Huq (IEEE Xplore, 2016-01-28)
    In this study, micro structured core and cladding based O-PCF has been analyzed by its propagation characteristics. The effects of pitch variation, total power consumption and effective refractive index are investigated ...
  • Porous core Photonic Crystal Fiber based chemical sensor 

    Paul, Bikash Kumar; Islam, Md. Shadidul; Chowdhury, Sawrab; Asaduzzaman, Sayed; Ahmed, Kawsar (IEEE Xplore, 2017-02-16)
    In this paper, a porous core photonic crystal fiber based chemical sensor has been proposed. The cladding of the proposed PCF is hybrid where inner three layers are hexagonal and the outer two layers are circular. The ...
  • Proposal of simple gas sensor based on micro structure optical fiber 

    Morshed, Monir; Asaduzzaman, Sayed; Arif, Md. Faizul Huq; Ahmed, Kawsar (IEEE Xplore, 2015-10-29)
    This paper presents a simple structure of photonic crystal fiber (PCF) based gas sensors. Gas sensors can be used in gas production facilities for safe measurement. The index guiding properties of two rings circular PCF ...
  • Spiral photonic crystal fiber for gas sensing application 

    Islam, Md. Ibadul; Khatun, Maksuda; Sen, Shuvo; Ahmed, Kawsar; Asaduzzaman, Sayed (IEEE Xplore, 2017-02-16)
    This paper proposes, the design and characterization of a spiral shape photonic crystal fiber for gas sensing application. The core region of the proposed PCF is oriented with elliptical air holes in a hexagonal shape and ...
  • Ultrahigh birefringence, ultralow material loss porous core single-mode fiber for terahertz wave guidance 

    Ahmed, Kawsar; Chowdhury, Sawrab; Paul, Bikash Kumar; Islam, Md. Shadidul; Sen, Shuvo; Islam, Md. Ibadul; Asaduzzaman, Sayed (The Optical Society, 2017-04-17)
    In this paper, a novel polarization-maintaining single-mode photonic crystal fiber (PCF) has been suggested for terahertz (THz) transmission applications. The reported PCF has five layers of hexagonal cladding with two ...