Comparative Analysis of Dispersion Compensation Techniques for Hybrid WDM/TDM Passive Optical Network

Garima Mahajan, Harmandar Kaur


Due to the growth of web and multimedia services Passive Optical Network (PON) come back to the leading edge of the research field. Optical networks play a important role by implementing optical fibre using Passive Optical Networks. Network service provider largely uses the Time Division Multiplexing and Wavelength Division Multiplexing based PON. Time Division Multiplexing (TDM) and Wavelength Division Multiplexing (WDM) are the foremost common multiplexing techniques. Both of these techniques has its own benefits and drawbacks. As Time Division Multiplex is capable to serve only a small variety of participants with low speed however for affordable prices. On the opposite side the Wavelength Division Multiplexing can serve a huge variety of participants but its price is much higher. In light of these contrasting properties there is an attempt to make a Hybrid WDM/TDM network that would have positive characteristics of each of these multiplexes and will also meet the characteristics of the Passive Optical Network (PON). In this paper techniques Hybrid WDM/TDM has been investigated for the three dispersion compensation techniques (pre, post and symmetrical) using the Dispersion Compensating Fibers (DCF). The performance has been compared on the basic of different parameters at the receiving end. Optisystem 7.0 is used for designing and simulation of the proposed system.


Passive Optical Network (PON), Optical Line Terminal, Optical Network Unit

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