Silicijumski optički modulatori za novu generaciju računara i optičkih telekomunikacija

Abstract

Optical technology is poised to revolutionise short reach interconnects. The leading candidate technology is silicon photonics, and the workhorse of such interconnect is the optical modulator. Although silicon does not have a linear electrooptical effect and modulators in silicon use free carrier modulation, there has been a dramatic improvement of their performance in recent years. Most notably the bandwidth has increased from the MHz to the multi GHz regime in less than a decade. Minimising metrics such as the energy per bit, and device footprint, whilst maximising bandwidth and modulation depth are non trivial demands. All of this must be achieved with acceptable thermal tolerance and optical spectral width, using CMOS compatible fabrication processes. Here we discuss the techniques that have, and will, be used to implement silicon optical modulators, as well as the outlook for these devices, and the candidate solutions of the future.

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Identifiers

ORCID for F.Y. Gardes: orcid.org/0000-0003-1400-3272

ORCID for Miloš Nedeljković: orcid.org/0000-0002-9170-7911

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