Multiband Photonic Integrated WSS beyond 1Tb/s Data Center Interconnect Technology

This paper presents a novel approach for enhancing Data Center Interconnect (DCI) systems by proposing a modular multi-band Wavelength Selective Switch (WSS) based on Photonic Integrated Circuits (PICs). The proposed architecture enables the WSS to operate over a wide spectrum, supporting more output fibers and channels while occupying a smaller footprint. In a random metro network scenario, network performance evaluations demonstrate improved traffic distribution and channel allocation for 800G and 1200G transmission systems. These findings provide valuable insights for optimizing network configurations and enhancing overall performance in DCI applications.