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We have investigated the Bragg gratings for surface plasmonic polaritons modes in the metal-dielectric-air waveguide and proposed a bidirectional coupler which is capable to guide the incident light at different wavelengths along two predetermined directions.
The development of integrated polarization manipulating devices opens the perspective on the use of polarization as a new design dimension in InP-based integrated optics. Examples will be given of how this results in additional functionalities.
Silicon-on-insulator (SOI) finite-size CROWs with optimized flat-band spectrum, excellent group-delay response, and compact size are experimentally demonstrated using direct correspondence with ladder-type LC circuits. Sensitivity analysis attributes residual distortions to non-ideal fabrication rather than coupling-induced-frequency-shifts.
Experimental study of new type of plasmonic cavities is reported. We demonstrate the excitation of localised modes, with very high light confinement. The cavities are suitable for devices operating in the strong light-matter coupling regime.
We present the design and fabrication of a SOI ultra-compact wavelength-demultiplexer based on arrayed-waveguide-gratings. The size of device is <0.1 mm2 and the simulation shows that crosstalk is >30 dB between channels and insertion loss is ~1 dB.
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