Nonblocking photonic switching for P2P self-organized optical concurrent communications network using pseudo-random numbers

Naoki Oshima; Yusuke Nozaki; Wakao Sasaki

doi:10.1117/12.699321

6 March 2007 Nonblocking photonic switching for P2P self-organized optical concurrent communications network using pseudo-random numbers

Naoki Oshima, Yusuke Nozaki, Wakao Sasaki

Author Affiliations +

Proceedings Volume 6482, Advanced Optical and Quantum Memories and Computing IV; 648210 (2007) https://doi.org/10.1117/12.699321
Event: Integrated Optoelectronic Devices 2007, 2007, San Jose, California, United States

Abstract

Peer-to-peer (P2P) optical communication network is presently attracting much attention in the application of smallscale network. We proposed a network element called as a node fabricated by optoelectronics hardware based on the optical bistable devices. These nodes can compose a self-organizing optical network being interconnected with each other. We also proposed an adaptive node with gate function which detects the differences of signal types as to the amplitude modulation (AM) signal in the network and switches their routings. Thus, the adaptive node allows optical P2P concurrent communications between multiple pairs of communicators in the network simultaneously. Moreover, we have proposed in the present work an optical nonblocking operation using the pseudorandom numbers fabricated into the above mentioned adaptive nodes. We have newly considered a switching scheme which identifies such pseudorandom numbers and forms automatically a signal propagation path so that the nodes with the same input pseudorandom numbers are to be linked. Since such a pseudorandom-number based switching may also prevent any irregular interception of established links among nodes, our scheme is proved to be a nonblocking operation. Therefore, this scheme allows multiple signals from input nodes to travel in the network simultaneously via only a single propagation path being established by the self-organized adaptive nodes. We have also demonstrated this switching operation experimentally by fabricating it into our optoelectronics hardware based on the optical bistable devices. As a consequence, nonblocking photonic switching scheme for P2P self-organized optical concurrent communications network has been achieved by our pseudorandom-number based adaptive nodes proposed by the present work.

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Naoki Oshima, Yusuke Nozaki, and Wakao Sasaki "Nonblocking photonic switching for P2P self-organized optical concurrent communications network using pseudo-random numbers", Proc. SPIE 6482, Advanced Optical and Quantum Memories and Computing IV, 648210 (6 March 2007); https://doi.org/10.1117/12.699321

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KEYWORDS

Switching

Circuit switching

Optical communications

Optical networks

Adaptive optics

Amplitude modulation

Signal detection

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