To meet the exploding demand for Internet and broad-band services, dense wavelength-division-multiplexing systems have been extended from long-haul transmission systems to metropolitan and access area networks. In such systems, compact and conventional arrayed-waveguide grating multi/demultiplexers are required to reduce the cost of the systems. The evolution of broadband services will depend o...

Recently, a large class of nonlinear systems which possess soliton solutions has been discovered for which exact analytic solutions can be found. Solitons are eigenfunctions of these systems which satisfy a form of superposition and display rich signal dynamics as they interact. In this paper, we view solitons as signals and consider exploiting these systems as specialized signal processors whi...

In this paper, we consider three options for using WDM (Wavelength Division Multiplexing) technology to carry IP traffic. First, WDM multiplexers/demultiplexers (transmission technology) can be used on direct physical links between IP routers to increase the transmission bandwidth of fibers. Second, WDM networking technology (with reconfigurable add/drop multiplexers, crossconnects, and tunable...

Design space exploration is an indispensable segment of High Level Synthesis (HLS) design of hardware accelerators. This paper presents a novel technique for Area-Execution time tradeoff using residual load decoding heuristics in genetic algorithms (GA) for integrated design space exploration (DSE) of scheduling and allocation. This approach is also able to resolve issues encountered during DSE...

A type of transformation media called α media is proposed by performing a direct transformation to the metric tensor of another kind of media, called seed media. Light rays in an α medium correlate to those in its seed medium through a simple displacement or rotation relation. Three types of commonly encountered anisotropic media are covered by the concept of α media: (1) media of slab shape, h...

Current optical networks are migrating to wavelength division multiplexing (WDM)-based fiber transport between traditional electronic multiplexers/demultiplexers, routers, and switches. Passive optical add–drop WDM networks have emerged but an optical data network that makes full use of the technologies of dynamic optical routing and switching exists only in experimental test-beds. This paper w...

Wavelength Division Multiplexing (WDM) is the key technique for high data rates communication systems. WDM systems offer many advantages for optical communications with several unique features and requirements in terms of their implementation. This is because the design characteristics and realization of WDM components are crucial and depend particularly on the type of materials used for fabric...

We present a theoretical and experimental study of photonic demultiplexers based on detuned stubs. The consist Y-shaped structures with one input line two output lines. Two different types are proposed to achieve selective transfer single mode in without disturbing the second one. (i) In first platform each contains stubs attached at sites (U-shaped resonators). derive closed form geometrical p...

The increasing need for more efficient communication networks has been the main driving force development of complex photonic integration circuits combining active and passive building blocks towards advanced functionality. However, this perpetual effort comes with cost additive power losses research community resorted to investigation different materials establish on-chip amplification. Among ...

2-µm-wavelength-range silicon-on-insulator (SOI) arrayed waveguide gratings (AWGs) with heterogeneously integrated InP-based type-II quantum well photodetectors are presented. Low insertion loss (2.5-3 dB) and low crosstalk (-30 to -25 dB) AWGs are realized. The InP-based type-II photodetectors are integrated with the AWGs using two different coupling approaches. Adiabatic-taper-based photodete...