Abstract
In this paper, we propose high-performance, self-routed, nonblocking, optoelectronic switching network based on OTIS-diameter two de Bruijn network architecture. The new switching network was developed based on the nonblocking property of diameter two de Bruijn digraph. The solution was then enhanced by inversing de Bruijn digraphs, which allows the network to utilize the high number of available wavelengths in optics. To further harvesting the strength of optics, while extending the capability of having bigger network size, the concept of Optical Transpose Interconnection System (OTIS) was used. An OTIS-D2 de Bruijn network with size N x N utilizes N (2)/(4) wavelength and consists of N (3)/(2) de Bruijn nodes. The network can route permutation routing in four de Bruijn cycles - two cycles in electronic and the other two cycles in optic. One electronic de Bruijn cycle requires packet to traverse (d(4) + 2d(3)) cross-points, while one optic de Bruijn cycle requires packet to traverse N-1/(4) x N-1/(4) broadcast-and-select star couplers.