Title :
Duobinary modulation format and unequal channel spacing integration to suppress four-wave mixing crosstalk in WDM systems
Author :
ElRazak, Bassem K Abd ; Saleh, M. Bashir ; Aly, Moustafa H.
Author_Institution :
Coll. of Eng. & Technol., Arab Acad. for Sci., Technol. & Maritime Transp., Alexandria, Egypt
Abstract :
This paper presents a study of the effectiveness of integrating unequal channel spacing and duobinary modulation format as a good alternative of conventional non-return to zero (NRZ) modulation format to further suppress four-wave mixing (FWM) crosstalk in a four 10-Gbps channels wavelength division multiplexing (WDM) system. The study is conducted using VPI Transmission Maker Simulator. The results show that duobinary modulation has a better performance in suppressing FWM than conventional NRZ, and that using unequal spacing with duobinary modulation further improves the suppression of FWM products in WDM systems.
Keywords :
channel spacing; multiwave mixing; optical crosstalk; optical modulation; wavelength division multiplexing; VPI transmission maker simulator; bit rate 10 Gbit/s; crosstalk suppression; duobinary modulation format; four-wave mixing; non-return to zero modulation format; unequal channel spacing integration; wavelength division multiplexing; Bandwidth; Channel spacing; Frequency modulation; Optical signal processing; Power measurement; Wavelength division multiplexing; Four-wave mixing; channel spacing; duobinary modulation dispersion shifted fibers; wavelength division multiplexing systems;
Conference_Titel :
Electronics, Communications and Photonics Conference (SIECPC), 2011 Saudi International
Conference_Location :
Riyadh
Print_ISBN :
978-1-4577-0068-2
Electronic_ISBN :
978-1-4577-0067-5
DOI :
10.1109/SIECPC.2011.5876926
