Počet záznamů: 1

Core-cladding mode coupling and recoupling in photonic crystal fiber for enhanced overlap of evanescent field using long-period gratings

  1. 1.
    0350478 - URE-Y 2011 RIV US eng J - Článek v odborném periodiku
    He, Z. - Zhu, Y. - Kaňka, Jiří - Du, H.
    Core-cladding mode coupling and recoupling in photonic crystal fiber for enhanced overlap of evanescent field using long-period gratings.
    Optics Express. Roč. 18, č. 2 (2010), s. 507-512 ISSN 1094-4087
    Grant CEP: GA ČR GA102/08/1719
    Výzkumný záměr: CEZ:AV0Z20670512
    Klíčová slova: Photonic crystal fiber * Long-period grating * Fiber-optic evanescent sensor
    Kód oboru RIV: JA - Elektronika a optoelektronika, elektrotechnika
    Impakt faktor: 3.749, rok: 2010

    Excitation of cladding modes was achieved using long period gratings (LPGs) inscribed in a photonic crystal fiber (PCF) by CO2 laser irradiation. Core-cladding mode coupling and recoupling resulted in marked improvement in the evanescent field overlap throughout the air channels in the PCF-LPG. Our numerical simulation has shown that design optimization of the PCF-LPG configuration can lead to a field power overlap as high as 22% with a confinement loss of less than 1 dB/m in the cladding mode.
    Trvalý link: http://hdl.handle.net/11104/0190477