Comparison and Loss Analysis of Efficient Optical Routers

Abstract

Nowadays multi-core processors along with various other modules like RAM, ROM, Cache, etc are densely placed on a single chip. System on Chip (SOC) technology makes this possible. Also super-fast, low power, high bandwidth interconnections of networks are needed in SoC technology. In the past few years, on-chip processing demands have increased because of technological advances in 5G communications, IOT, Big data centers etc, which are not getting accomplished using electrical on-chip interconnection networks. All these requirements can be fulfilled with new generation technology called Optical Networks on Chip (ONoC). In which electrical interconnections are replaced with optical interconnections. The ONoC performance depends on the Optical Routers, which are the main part of ONoC. Optical routers are one of the important and fundamental constituent of Optical NoCs. Till date many researchers have proposed several Optical Router designs, every router has its own advantages, disadvantages as well as features. In this paper, the most efficient and commonly referred optical routers are discussed and compared.