Examinando por Autor "Ramirez, CA"

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    Ítem
    Improvement of performance in FFH-OCDMA systems by using strong apodized fiber Bragg gratings
    (SPIE-INT SOC OPTICAL ENGINEERING, 2004-01-01) Marulanda, JI; Torres, PI; Ramirez, CA; Universidad EAFIT. Departamento de Ciencias Básicas; Óptica Aplicada
    This paper shows simulations of an all-fiber fast optical code division multiple access communications system (OCDMA), using strong apodized fiber Bragg gratings (FBGs) arrays as passive encoding-decoding devices. Auto and cross-correlation functions of the user signals, and bit error rate (BER) were used as evaluation criteria. Through numerical analysis, we demonstrated that when strong Bragg gratings are used the performance of the system is increased. We obtain the BER performance for strong gratings and compare results in various cases.
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    Ítem
    Improvement of performance in FFH-OCDMA systems by using strong apodized fiber Bragg gratings
    (SPIE-INT SOC OPTICAL ENGINEERING, 2004-01-01) Marulanda, JI; Torres, PI; Ramirez, CA; Marulanda, JI; Torres, PI; Ramirez, CA; Universidad EAFIT. Departamento de Ciencias; Electromagnetismo Aplicado (Gema)
    This paper shows simulations of an all-fiber fast optical code division multiple access communications system (OCDMA), using strong apodized fiber Bragg gratings (FBGs) arrays as passive encoding-decoding devices. Auto and cross-correlation functions of the user signals, and bit error rate (BER) were used as evaluation criteria. Through numerical analysis, we demonstrated that when strong Bragg gratings are used the performance of the system is increased. We obtain the BER performance for strong gratings and compare results in various cases.