We demonstrate how to design thin-film multilayer structures that separate multiple wavelength channels with a single stack by spatial dispersion, thus allowing compact manufacturable wavelength multiplexers and demultiplexers and possibly beam-steering or dispersion-control devices. We discuss four types of structure--periodic one-dimensional photonic crystal superprism structures, double-chir...

This paper discusses the impact of double cavity Fabry-Perot demultiplexers on the performance of wavelength division multiplexing (WDM) systems with dispersion supported transmission (DST) of three 10 Gbit/s channels separated 1 nm. For performance assessment, a suitable simulation methodology has been used which combines signal simulation with noise analysis in optically amplified multichanne...

We analyze how complicated a linear optical component has to be if it is to perform one of a range of functions. Specifically, we devise an approach to evaluating the number of real parameters that must be specified in the device design or fabrication, based on the singular value decomposition of the linear operator that describes the device. This approach can be used for essentially any linear...

We propose a submicron plasmonic wavelength filtering/demultiplexing structure based on aperture-coupled slot cavities, which can overcome the limitation by the field skin depth of ∼25nm in a conventional evanescentcoupling approach, and thus lead to an easy-to-fabricate device structure. By introducing the stub-induced interference arm in the drop or bus waveguide, the power ratio between the ...

Energy transfer between photons and molecules and between neighboring molecules is ubiquitous in living nature, most prominently in photosynthesis. While energy transfer is efficiently utilized by living systems, its adoption to connect individual components in man-made plasmonic nanocircuits has been challenged by low transfer efficiencies that motivate the development of entirely new concepts...

In this study, an improvement, and a generalization to more than two bits of the superdense coding protocol are presented. Based on both innovations, novel quantum key secure communication is developed, which uses N-bit key, optical multiplexers demultiplexers, repeaters, work thanks entanglement swapping. way, new allows simultaneous transmission N-bits encrypted through channels. This study i...

This work aims to discuss a study of numerical simulations the performance arrayed waveguide grating (AWG) and fiber Bragg (FBG) demultiplexers in optical network special class denominated photonic crystal (PCF) considering dispersive non-linear effects. The proposed method is based on wavelength division multiplexing (WDM) configuration PCF. For simulation analysis, commercial OptiGrating soft...

LFSR’s are widely used in the BIST environment. In [1] a multiphase technique is proposed to reduce the data transitions (DTs) in both the LFSR and the circuit under test. However, its multiphase clock generator is implemented by a conventional Johnson counter with a complex control logic, which requires considerable area overhead and power dissipation. Also the employed dynamic demultiplexers ...