Now showing items 1-4 of 4

    • Asymmetric light propagation in chirped photonic crystal waveguides 

      Kurt H.; Yilmaz, D.; Akosman, A.E.; Özbay, Ekmel (Optical Society of American (OSA), 2012)
      We report numerical and experimental investigations of asymmetric light propagation in a newly designed photonic structure that is formed by creating a chirped photonic crystal (PC) waveguide. The use of a non-symmetric ...
    • Compact wavelength de-multiplexer design using slow light regime of photonic crystal waveguides 

      Akosman, A.E.; Mutlu, M.; Kurt H.; Özbay, Ekmel (Optical Society of American (OSA), 2011)
      We demonstrate the operation of a compact wavelength demultiplexer using cascaded single-mode photonic crystal waveguides utilizing the slow light regime. By altering the dielectric filling factors of each waveguide segment, ...
    • Large bandwidth mode order converter by differential waveguides 

      Oner, B.B.; Üstün, K.; Kurt H.; Okyay, Ali Kemal; Turhan-Sayan G. (Optical Society of American (OSA), 2015)
      In this article, we propose a large bandwidth mode-order converter design by dielectric waveguides with equal lengths but different cross-sectional areas. The efficient conversion between even and odd modes is verified by ...
    • Photonic crystal based multi-mode high-qcavity 

      Akosman, Ahmet Emin; Mutlu, Mehmet; Kurt H.; Özbay, Ekmel (IEEE, 2011)
      An optical race-track has been investigated in order to obtain a multi resonant structure with high-Q factors. Photonic crystal based structure provides strong field confinement and scalability in the dimensions of the ...