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We present an analysis of the polarisation dependent scattering loss due to surface and sidewall roughness in thin, shallow-ridge silicon-on-insulator (SOT) waveguides using three dimensional coupled mode theory. The impact on resonant lateral leakage is discussed.
A new technique for parallel imprinting of multiple optical-fibre facets is presented. Resolution of better than 15nm is demonstrated and up to 40 optical-fibres have been imprinted in parallel. A compact, portable imprinting-module exploits self alignment to accommodate non-planar, biological molds.
A novel instantaneous frequency measurement using all optical mixing is demonstrated. This system can provide a measurement of RF frequency while requiring no high speed electronic components and remoting all components of the measurement system to the receiver.
We report a novel design of a planar polymer integrated refractive index sensor based on an asymmetric fluid-infiltrated coupler architecture. Modal and beam propagation analysis revealed a sensitivity comparable to the most sensitive fibre-based concepts.
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