Investigation of Spectrum-slicedWDM System
Wavelength division multiplexing technology is widely used in modern long-haul systems to increase bandwidth of communication channels. However there is also a clear demand for higher capacity in metropolitan area networks, where CWDM and DWDM technologies are rarely used due to economical factors. This paper contains an overview of investigation of four channel SSWDM system. The main advantage of such a system is its relatively cheap components: light-emitting diodes with internal modulation are utilized on the transmission side. The investigation of the system characteristics and their conformance to the requirements of standards and real networks is executed using OptSim simulation software. As a result of the investigation several potential physical issues that can arise during maintenance of a real system are defined, recommendations are given to solve these issues. Ill. 6, bibl 8 (in English; summaries in English, Russian and Lithuanian).
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