A novel design of all-optical logic gates based on nonlinear slot waveguide couplers is proposed. NOT, OR, and AND logic gates can be realized by simple single optical directional coupler configuration. Strong polarization dependencies of slot waveguides are effectively utilized for realizing polarization-independent optical directional couplers in linear regime and polarization-dependent all-o...

This presentation includes a short overview of integrated optics and a more detailed description of a realized optical beam combiner circuit for a space optic application. The introduction covers the basics of straight and bent waveguides, crossings and couplers. Integration of waveguides with fibers, lasers, detectors and electronics is briefly described, as well as the main differences betwee...

We consider an analogue of entanglement-swapping for a set of black boxes with the most general non-local correlations consistent with relativity (including correlations which are stronger than any attainable in quantum theory). In an attempt to incorporate this phenomenon, we consider expanding the space of objects to include not only correlated boxes, but ‘couplers’, which are an analogue for...

Two novel compact BLCs were developed and proposed with compact size and improve the performance of dual-band branch-line couplers (BLCs). The developed model was reported to be a two-section stepped-impedance resonator which includes a highimpedance section accompanied by loaded double branches lines. The proposed model was shown to reduce the size of the dual-band BLC around 61% as well as a ...

We introduce a fiber ring optical resonator based on adiabatic fused-fiber grating couplers. The coupling of a through fiber to the resonator is controlled by the strength of the fiber Bragg gratings. By using two of these couplers and incorporating erbium-doped (ED) fiber in the ring, we control the internal loss of the ring by pumping the ED fiber. The transmission spectra of the through port...

In this paper, all-optical logical gates based on mismatched nonlinear two-core fiber couplers are proposed. In these devices, solitonlike logical input pulses are shown to avoid pulse breakup to perform logical operations. The mismatched two-core fiber couplers can be produced through slightly different cores embedded in the same cladding. In this situation, the two cores have different disper...

Couplers that link together two or more numerical simulations are well-known abstractions in the Earth System Modeling (ESM) community. In the past decade, reusable software assets have emerged to facilitate scientists in implementing couplers. While there is a large amount of overlap in the features supported by software coupling technologies, their implementations differ significantly in term...

The 50MeV, 100mA energy-recovery-linac (ERL) demonstration facility bERLinPro is currently undergoing construction at HZB. The high power injection system, that will deliver a beam at 6MeV, is split into a 1.4 cell SRF photo injector and three Cornell-style 2-cell boosters. The injector and two of the booster cavities will provide about 2MeV each and must handle up to 220 kW of beam loading. Ne...

This study presents design and optimization of compact efficient nanooptical couplers involving photonic crystals. Nanooptical that have single double input ports are designed to obtain transmission electromagnetic waves in desired directions. In addition, these cascaded by adding one after another realize systems. the all couplers, multilevel fast multipole algorithm, which is an full-wave sol...

The self-imaging property of a homogeneous multi-moded planar optical waveguide has been applied in the design optical couplers based on multimode Interference (MMI). Based on this design, the optical wavelength and dimensions tolerance for MMI-3dB couplers are investigated analytically. They are shown to be inversely proportional to the multimode section width. Among Symmetrical, paired, and g...