fiber-to-waveguide coupling
Fiber coupled nanophotonic devices for nonlinear optics and cavity QED
... The PC modes can be classified as either even or odd, depending on their parity under inversion about the x − z mirror plane of the slab (see Fig. 2.1 for the coordinate system), and it can be shown that the lowest order ...
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Optimal VIA Placement in Under Filled Embedded Multimode Waveguides
... multimode waveguide applications, a single mode fiber input was propagated along a 20 mm wave- guide to mimic field structures present at the ...the waveguide attenuation, the VIA placement should be ...
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Highly efficient coupling between a monolithically integrated photonic crystal cavity and a bus waveguide
... planar coupling scheme offers the possibility of monolithic ...the coupling strength depends on the separation between the cavity and the waveguide, the planar coupling scheme has limited ...
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Hybrid plasmonic waveguide coupling of photons from a single molecule
... The confocal microscope used to study the waveguides is pre- sented in Fig. 2(c). A laser provided excitation light—either a cw external cavity diode laser (Toptica) at 780 nm wavelength or a pulsed diode laser ...
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Optical coupling for multi-layer printed wiring board by selfwritten waveguide
... (Optical Fiber Conference, March 2015) ...optical coupling efficiency is expected to be achieved when the optical pin coupling device is coupled between surface devices (VCSEL/ PD) and the ...
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Efficient coupling of single photons to ridge-waveguide photonic integrated circuits
... efficient coupling of single photons emitted by single quantum dots (QDs) in a photonic crystal cavity (PhCC) to a ridge waveguide ...70% coupling efficiency between the photonic crystal ...
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III V semiconductor waveguides for photonic functionality at 780 nm
... small waveguide structures when the optical mode size within the launch fiber is larger than the cross-section of the ...the fiber mode and the waveguide mode, divergence of the light at the ...
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Direct fiber coupled single photon source based on a photonic crystal waveguide
... the fiber at the saturated pump ...the fiber is estimated to be 24%, which includes internal quan- tum efficiency, spontaneous emission factor b, and output coupling efficiency ...the coupling ...
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Efficient Coupling of Tapered Optical Fibers to Silicon Nanophotonic Waveguides on Rare Earth Doped Crystals
... the waveguide, as they lead to a non-negligible power loss of about 10% from our ...the fiber with the waveguide to achieve optimal ...the waveguide taper is extremely narrow at the region ...
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Multi-Poly-Silicon-Layer-Based Spot-Size Converter for Efficient Coupling Between Silicon Waveguide and Standard Single-Mode Fiber
... various coupling schemes have been proposed to achieve a high coupling efficiency between the silicon waveguide and ...SOI waveguide into a fiber, which has the advantage of not ...
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A partial power gradient at coupling region for coupled waveguide fiber
... the coupling region and again increase to the ...of coupling ratio having a fractional power which mainly occurs at the coupling ...The coupling region itself has three regions based on the ...
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THz waveguide adapters for efficient radiation out-coupling from double metal THz QCLs
... metallic waveguide section (feeder) assembled on top of the laser itself, and an adiabatic expansion of the feeder, forming a horn that radiates into an optical fiber or, alternatively, into free ...a ...
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Variable Coupling Ratio Y-Branch Plastic Optical Fiber (POF) Coupler with Suspended Waveguide Taper
... variable coupling ratio Y-Branch plastic optical fiber (POF) coupler based on acrylic has been ...suspended waveguide taper and a simple attenuation technique based on lateral displacement of two ...
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Inter-mode reactive coupling induced by waveguide-resonator interaction
... Pioneering experimental studies in late 1970’s [9] showed that destructive interference of different decay paths, leading to the same final continuum, can suppress absorption by a multilevel atom via the so-called Coher- ...
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Tunable Plasmonic Induced Transparency in Graphene Nanoribbon Resonators
... simulations, the thickness of graphene is set as Δ = 0 . 34 nm, which is the value of a single-layer-atom thickness. In order to save storage space and computing time, non-uniform mesh is applied in the FDTD simulation. ...
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Numerical Investigation of External Electromagnetic Field Coupling to Coplanar Waveguide
... In this paper, the coupling between an external electromagnetic field and the CPW line was investigated. The electric and magnetic fields induced along the line by the external plane wave were analyzed. Effects of ...
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Experimental and computational studies of novel coaxial 2D Bragg structures for a high-power FEM
... one finds that the cut-off frequencies of the partial waves coupled on the corrugation and which define the location of the reflection zones, are different for input and output reflectors. This results in frequency shift of ...
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Chirality of nanophotonic waveguide with embedded quantum emitter for unidirectional spin transfer
... efficient coupling of QD exciton spin to the direction of photon emission in nanophotonic ...the waveguide geometry is completely symmetric, and the dielectric material is ...the waveguide and exploit ...
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Accurate Modeling of Coupling Junctions in Dielectric Covered Waveguide Slot Arrays
... transmission line model. In [3] Mazzarella and Panariello deal with the edge effects in slot arrays by using the Geometrical Theory of Diffraction, and in [4] Rengarajan and Shaw analyze the higher- order modes ...
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Coplanar Waveguide Feed to the Hemispherical DRA
... In comparison to the inductive or capacitive feeds, however, the size of the circular-loop feed is smaller, due to its curved shape. This enables design of the circular- loop feed on low-permittivity substrates while ...
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