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Beams

Gaussian beams Free-space propagation of Gaussian beams, beam spreading, interference of co-and counter-propagating beams at different angles of incidence.

Waveguiding

Waveguiding & coupling Directional propagation of guided modes, propagating- and standing waves, codirectional evanescent coupling between adjacent cores.

Facets

Waveguide facets Light propagation across the end facets of slab waveguides, total reflection in case of a specific multimode configuration.

Bends

Bent slab waveguide Propagation along curved slab waveguides with different bend radii, field/radiation pattern, propagation and attenuation constants.

Crossing

Waveguide crossing Perpendicular crossing of two slab waveguides, single- and multimode configurations with different core widths.

Photonic crystal waveguide

Photonic crystal waveguide, 90-degree bend 90o-bend in a photonic crystal waveguide, a rectangular lattice of square rods, access waveguides included.

Square microresonator

Square microresonator A circuit with a square microcavity between two bus waveguides, spectral power transmission and field pattern at resonance and nearby.

Square microcavity

Square microcavity, perpendicular ports A square microcavity with perpendicular bus waveguides, a resonant waveguide T-junction; power spectrum and field examples.

Rectangular cavities

Rectangular cavities Configurations with different aspect ratio and orientation, spectral power transmission, field pattern at major and minor resonances.

Add-drop-filter

Two coupled square cavities, an add-drop-filter Two square microcavities, direct coupling and interaction through bus waveguides, add-drop-filter functionality.

High-contrast gratings

Finite high-contrast dielectric gratings Finite corrugated dielectric membranes, normal incidence of Gaussian beams, varying number of periods, 2-D QUEP simulations.

Resonator chain

Chain of square microcavities A sequence of square dielectric cavities, evanescent guided wave excitation at one end, resonant field pattern, spectral amplitudes assigned to the individual cavities.

Letters

Resonant letters Rectangular arrangement of dielectric squares and specific spacers; all pieces of the composite structure resonate at the same frequency.

Microring

Circular microring Circular microring-resonator, two bus channels, radial fundamental resonances, HCMT model (bend-mode based), spectral transmission.

Microdisk

Circular microdisk Circular microdisk-resonator, two bus channels, radial fundamental and first order resonances, QUEP simulations (staircase approximation).

CROW

Three-ring CROW Short coupled resonator optical waveguide, three coupled micro-rings, straight access channels, HCMT model (bend-mode based), spectral transmission.

Photonic molecule

Photonic molecule Symmetric arrangement of three micro-rings, excitation through a slab channel, HCMT analysis (WGM-based), Transmission resonances, supermodes with and without bus.

Bend-straight-couplers

Bend-straight-couplers Conventional CMT-analysis (3D) of couplers made of a bent and a straight waveguide; basis: WMM modes for straight channels.

Periodic waveguide

Periodic waveguide Infinite regular sequence of high-contrast dielectric squares, 1-D periodicity, Floquet-Bloch modes, band structure diagram.

Cross-strip interferometer

Cross strip interferometer Laterally unguided, vertically guided light traverses a rib of specific dimensions, a polarizer configuration.

Circulator

Polarization independent integrated optical circulator Concept for a polarization-independent integrated optical circulator, 3D, unidirectional magnetooptic polarization converters combined with polarization splitters.

— examples in the manual of the Metric simulation tools —-

Waveguide

Slab waveguide Light propagation along a symmetric three layer slab waveguide.

Coupling

Waveguide coupling Evanescent interaction between two identical parallel cores, periodic beating pattern.

Facet

Waveguide end facet Rectangular slab waveguide facet, guided wave reflection and divergence of transmitted waves.

Corner

Waveguide corner Sharp 90o corner in a slab waveguide, a lot of radiative loss.

T-junction

Waveguide T-junction Perpendicular slab waveguides, partial lateral guided power transmission and radiation loss.

Crossing

Waveguide crossing Intersection of two cores at 90o, guided wave reflection, transmission, lateral routing, and radiation loss.

Square microresonator

Square microresonator A square dielectric cavity with two perpendicular bus channels, a resonant configuration.

Hole

Waveguide with hole Light propagation across a single hole in a nonsymmetric slab waveguide, radiation pattern.

Bragg grading

Waveguide Bragg grating A deeply etched, short waveguide Bragg grating (4 periods), reflector configuration.

Defect cavity

Defect cavity A short, deeply etched waveguide Bragg grating with central defect, transmission resonance.

Photonic crystal waveguide

Photonic crystal waveguide A missing row in a square lattice of rods; the light enters and exits the photonic crystal region through conventional waveguides.

PC waveguide bend

Bend in a photonic crystal waveguide 90o bend in a 2D photonic crystal waveguide, input and output via conventional waveguides.

Square microresonator

Square microresonator Resonance in a square dielectric cavity with two parallel port waveguides.

— examples in the WMM-manual —

Waveguide coupling

Two coupled cores Evanescent interaction between two parallel channels, intensity distribution on the cross section, animation of mode beating with propagation distance.

Multimode interference

Multimode interference A wide multimode rib, localized excitation, multimode interference, animation of the quasi-periodic focusing pattern with propagation distance.