Browsing by Author "Simović, Ana"

Now showing items 1-20 of 28

    • Calculation of Bandwidth of Multimode Step-Index Polymer Photonic Crystal Fibers 

      Drljača, Branko; Savović, Svetislav; Kovačević, Milan; Simović, Ana; Kuzmanović, Ljubica; Djordjevich, Alexandar; Min, Rui (MDPI, 2021-12-01)
      By solving the time-dependent power flow equation, we present a novel approach for evaluating the bandwidth in a multimode step-index polymer photonic crystal fiber (SI PPCF) with a solid core. The bandwidth of such fiber ...

    • Calculation of the bandwidth of W-type photonic crystal fibers by time-dependent power flow equation 

      Kovačević, Milan; Kuzmanović, Ljubica; Simović, Ana; Savović, Svetislav; Drljača, Branko; Djordjevich, Alexandar (Elsevier, 2018-06-30)
      A multimode photonic crystal fiber with a solid-core takes the characteristic W-shaped index profile upon forming an inner cladding layer with its own value of the effective refractive index corresponding to the distinct ...

    • Calculation of the mode coupling coefficient in step-index plastic optical fibers based on the far field measurements 

      Savović, Svetislav; Djordjevich, Alexandar; Drljača, Branko; Simović, Ana; Min, Rui (Frontiers, 2022-05-25)
      Using the power flow equation (PFE), this article investigates mode coupling in step-index (SI) multimode (MM) polymer optical fiber (POF). This equation’s coupling coefficient was initially fine-tuned so that it could ...

    • Controlling the bandwidth of W-type plastic-clad silica optical fibers 

      Simović, Ana; Savović, Svetislav; Drljača, Branko; Djordjevich, Alexandar (IOP Publishing, 2019-06-27)
      A new design of a multimode plastic-clad silica optical fiber that takes the characteristic W-shaped index profile is proposed. The bandwidth and steady-state loss are determined for such a W-type plastic-clad silica ...

    • Enhanced bandwidth of W type plastic optical fibers designed from singly clad step index plastic optical fibers 

      Simović, Ana; Savović, Svetislav; Drljača, Branko; Djordjevich, Alexandar (Elsevier, 2018-11-02)
      We propose a multimode W type (doubly clad) plastic optical fiber which takes the characteristic W-shaped index profile designed from a multimode singly clad step index plastic optical fiber upon modification of the cladding ...

    • Enhancement of the bandwidth of W-type glass optical fibers in the infrared wavelength region 

      Simović, Ana; Savović, Svetislav; Drljača, Branko; Djordjevich, Alexandar (Elsevier, 2018-08-28)
      Transmission characteristics (bandwidth and steady state loss) of multimode W-type glass optical fibers are investigated by solving the time-dependent power flow equation. Results show how the bandwidth in W-type glass ...

    • Influence of mode coupling on angular division multiplexing in seven-core plastic optical fibers 

      Savović, Svetislav; Djordjevich, Alexandar; Simović, Ana; Drljača, Branko (IOP Science, 2020-05-11)
      We propose an angular division multiplexing in new designed multicore plastic optical fiber with seven cores arranged in a hexagonal array. The influence of mode coupling on two-channel angular division multiplexing ...

    • Influence of mode coupling on three spatially multiplexed channels in multimode graded index plastic optical fibers 

      Svetislav, Savović; Djordjevich, Alexandar; Simović, Ana; Drljača, Branko (IOP Science, 2020-10-27)
      The influence of mode coupling on three-channel spatial division multiplexing capability in multimode graded index plastic optical fibers is investigated by solving the power flow equation. Our numerical results show ...

    • Influence of mode coupling on three, four and five spatially multiplexed channels in multimode step-index plastic optical fibers 

      Savović, Svetislav; Djordjevich, Alexandar; Simović, Ana; Drljača, Branko (Elsevier, 2018-04-04)
      We investigate the influence of mode coupling on space division multiplexing capability of three multimode step-index plastic optical fibers with different strengths of mode coupling. Results show that mode coupling ...

    • Influence of the Wavelength on the Bandwidth in W-Type Plastic Optical Fibers 

      Drljača, Branko; Simović, Ana; Djordjevich, Alexandar; Savović, Svetislav (Springer Link, 2021-07-03)
      We investigate the bandwidth and steady-state losses of multimode W-type plastic optical fibers solving the time-dependent power flow equation and show how the bandwidth in W-type plastic optical fibers can be enhanced ...

    • Influence of wavelength on equilibrium mode distribution and steady state distribution in W-type plastic optical fibers 

      Drljača, Branko; Simović, Ana; Djordjevich, Alexandar; Savović, Svetislav (IOP Science, 2020-05-27)
      Wavelength dependence of equilibrium mode distribution (EMD) and steady state distribution (SSD) in W-type plastic optical fibers (POFs) is investigated in this paper for parametrically varied width of the fiber’s ...

    • Influence of wavelength on the bandwidth of W-type plastic-clad silica optical fibers 

      Drljača, Branko; Simović, Ana; Djordjevich, Alexandar; Savović, Svetislav (IOP Science, 2020-01-07)
      The bandwidth and steady-state loss of multimode W-type plastic-clad silica optical fibers are investigated by solving the time-dependent power flow equation. The results show how the bandwidth of W-type plastic-clad ...

    • Influence of width of launch beam distribution and mode coupling on transmission characteristics of W-type plastic optical fibers 

      Drljača, Branko; Simović, Ana; Djordjevich, Alexandar; Min, Rui; Jovanović, Slavica; Savović, Svetislav (IOP Science, 2021-07-16)
      We show strong effects of width of the launch beam’s angular distribution on bandwidth and mode coupling in W-type plastic optical fibers (POFs). In general, the broader this width, the stronger the coupling and the lower ...

    • Infrared wavelength dependence of leaky mode losses and steady state distribution in W-type glass optical fibers 

      Djordjevich, Alexandar; Simović, Ana; Savović, Svetislav; Drljača, Branko (Elsevier, 2018-03-13)
      Infrared wavelength dependence of leaky mode losses and steady state distribution (SSD) in W-type glass optical fibers (doubly clad fibers with three layers) is investigated in this paper for parametrically varied ...

    • Investigation of bandwidth in multimode graded-index plastic optical fibers 

      Simović, Ana; Drljača, Branko; Savović, Svetislav; Djordjevich, Alexandar; Min, Rui (Optica Publishing Group, 2021-09-13)
      A new method is proposed for investigating the bandwidth in multimode graded-index plastic optical fibers (GI POFs). By numerically solving the time-dependent power flow equation, bandwidth is reported for a varied launch ...

    • Method for investigation of mode coupling in multimode step-index silica photonic crystal fibers 

      Savović, Svetislav; Kovačević, Milan; Simović, Ana; Kuzmanović, Ljubica; Drljača, Branko; Djordjevich, Alexandar (Elsevier, 2021-07-30)
      We propose a new method for investigation the state of mode coupling in a multimode step-index silica photonic crystal fiber (SI SPCF) with a solid-core by solving the time-independent power flow equation. For various ...

    • Modeling of power flow in multimode W-type photonic crystal fibers 

      Drljača, Branko; Savović, Svetislav; Kovačević, Milan S.; Simović, Ana; Kuzmanović, Ljubica; Djordjevich, Alexandar; Yussupova, Gulbakhar (МИНИСТЕРСТВО НАУКИ И ВЫСШЕГО ОБРАЗОВАНИЯ РОССИЙСКОЙ ФЕДЕРАЦИИ Некоммерческое акционерное общество «Алматинский университет энергетики и связи имени Гумарбека Даукеева» Федеральное государственное бюджетное образовательное учреждение высшего образования «Казанский государственный энергетический университет», 2023-01-01)
      In this paper recent advances in application of power flow equation to Wtype photonic crystal fibers (PCF) is presented. As known for many years power flow equation has been proven to be best solution when transmission ...

    • Power Flow in Graded-Index Plastic Optical Fibers 

      Savović, Svetislav; Simović, Ana; Drljača, Branko; Djordjevich, Alexandar; Stepniak, Grzegorz; Bunge, Christian Alexander; Bajić, Jovan (IEEE, 2019-07-03)
      A method is proposed for predicting the evolution of the power distribution along graded-index plastic optical fibers. This method is verified against our recently reported measurements. The strong influence of mode coupling ...

    • Power flow in multimode step-index plastic photonic crystal fibers 

      Savović, Svetislav; Kovačević, Milan; Drljača, Branko; Simović, Ana; Kuzmanović, Ljubica; Djordjevich, Alexandar (Elsevier, 2021-08-21)
      We investigate the state of mode coupling in a multimode step-index plastic photonic crystal fiber (SI PPCF) with a solid-core by solving the time-independent power flow equation. For various arrangements of air-holes, ...

    • Power flow in multimode W-type plastic optical fibers with graded index core distribution 

      Simović, Ana; Djordjevich, Alexandar; Drljača, Branko; Savović, Svetislav (Elsevier, 2021-06-11)
      A method is proposed for investigation of transmission along a multimode W-type (doubly clad) plastic optical fiber (POF) with graded index (GI) distribution of the core. The multimode W-type GI POF is designed from a ...