Abstract:

The characteristics of the multigranularity optical cross connect (MG-OXC) node with the tunable wavelength converters is analyzed. A new dynamic routing and wavelength assignment algorithm which is applied in multi-granularity optical switching network is also proposed. The performance of the MG OXC with tunable optical converters, compared with traditional OXC and MG-OXC, is evaluated with help of numerical calculations under NSFNET topology. The results show that the performance of the network with MG-OXC with tunable wavelength converters is superior to that of the network composed with only traditional OXC and MG-OXC.

Key words: multi-granularity optical switching, tunable wavelength converter, dynamic routing and wavelength assignment