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Integrated photonics components and systems for use in optical telecommunications and optoelectronic sensors, namely optical wave guides, optical transceivers, optical switches, optical chips, optical gyros, optical couplers, optical interferometers, optical delay lines, optical processors, optical distance measurers, optical attenuators and amplifiers, optical temperature sensors, optical chemical sensors, optical biological sensors, optical multiplexers and demultiplexers, optical filters, and optical modulators