Impact Analysis of Modulation Formats in 40 Gbit/s DWDM Systems
Journal Title: International Journal of Computer & organization Trends(IJCOT) - Year 2013, Vol 3, Issue 11
Abstract
The development of digital optical communications systems at high flow rates (NX40Gbit/s) and wavelength division multiplexed (WDM) reveals new issues such as the need to compensate the chromatic dispersion at higher levels, the onset of effects the polarization dispersion (PMD), the greater relative importance of intra-channel nonlinearities, weakening the clearing. Conventional modulation of the optical power of all or nothing (On-OffKeying) can not handle all these challenges and specific modulation formats (duobinary,DPSK...) are envisaged to overcome the vagaries of broadband transmission. In this paper we study some aspects of modulation formats that meet these requirements transmission
Authors and Affiliations
Mohamed Kheroua , Belkacem Kouninef , Kouider Mohamed Belkacem , Abdelhamid Cheriet
Keywords
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