Wavelength routed shared buffer based feed-forward architectures for optical packet switching

Several techniques for optical buffering have been given in past and still a lot of research is being done. Also, the rapid growth of the broadband communication has placed extreme demands upon the telecommunication infrastructure. This has generated an urgent requirement to introduce new technologies. Wavelength division multiplexing (WDM) is one of those techniques, which allows simultaneous propagation of large number of channels at higher data rates in a single fiber. In this paper, we are proposing three architectures for optical packet switching by utilizing wavelength routed shared buffer more efficiently. Buffering technique used in this paper is a new approach towards WDM application in optical domain. These three architectures are made by three different combinations of space switch and Arrayed Waveguide Grating (AWG). The results for the loss probability and average delay are obtained by simulation.