Conclusions and Future Directions
In this work we have shown how certain concepts borrowed from physics, microwaveengineering and optics can be applied to the design of passive integrated optics, yield- ing devices with very good performance. These concepts have general validity, but their success in our devices is greatly aided by the strong light confinement in HIC structures which leads to low radiation loss and small device sizes, on the order of the optical wavelength. These are desirable characteristics that enable dense integration of optical devices on a chip. An additional advantage towards this goal is offered by the fact that some of the main high index-contrast systems are based on silicon for which there are well established ULSI processing techniques.
KeywordsMicrowave Sorting Coupler
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