Metasurfaces consist of arrays artificial atoms arranged on a subwavelength scale, and have significant advantages in modulating the phase, amplitude, polarization optical field. Limited by discrete sampling principle assumption periodicity, conventional forward design method suffers unavoidable errors, which easily leads device performance to degrade. In this paper, freeform wavelength divisio...

This paper provides an overview on efficient algorithms for multicasting in optical networks supported by Wavelength Division Multiplexing (WDM) with limited wavelength conversion. We classify the multicast problems according to offline and on-line in both reliable and unreliable networks. In each problem class, we present efficient algorithms for multicast and multiple multicast and show their...

An easy and efficient evolution method from a time-division multiplexing passive optical networks (TDM-PONs) to next-generation PONs is proposed and demonstrated. A single-type wavelength band combiner/splitter (WC) enables a simple and efficient evolution of TDM-PON maintaining the current PON infrastructure and wavelength plan. The feasibility of the proposed evolution architecture is shown b...

In order to facilitate interoperability in a network composed of next generation lambda-switch-capable equipment, this document defines a standard lambda label format that is compliant with the Dense Wavelength Division Multiplexing (DWDM) and Coarse Wavelength Division Multiplexing (CWDM) grids defined by the International Telecommunication Union Telecommunication Standardization Sector. The l...

In order to facilitate interoperability in a network composed of next generation lambda-switch-capable equipment, this document defines a standard lambda label format that is compliant with the Dense Wavelength Division Multiplexing (DWDM) and Coarse Wavelength Division Multiplexing (CWDM) grids defined by the International Telecommunication Union Telecommunication Standardization Sector. The l...

Abstract We survey the research and we report new results related to the relationships that exist between Boolean and nonBoolean functions defined on Boolean algebras. The results included here are relevant for set-valued logic that is useful in several non-standard types of circuits: interconnectionfree biomolecular devices, devices based on optical wavelength multiplexing, etc. We extend our ...