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Proceedings Paper

Limits to silicon modulator bandwidth and power consumption
Author(s): Michael R. Watts; Douglas C. Trotter; Ralph W. Young; Anthony L. Lentine; William A. Zortman
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Paper Abstract

The limits to silicon modulator bandwidth and power consumption are explored. Traditional electrical interconnects provide insufficient bandwidth (~10Gb/s) and consume far too much power (~10pJ/bit) for future high performance computing applications. Microphotonic devices closely integrated with advanced CMOS electronics have the potential to dramatically lower intra- and inter-chip communication power consumption while greatly increasing available bandwidth. Our recent results confirm the significant advantages offered by microphotonic communication links. We have broken the 100fJ/bit barrier by demonstrating 4-micron diameter microdisk modulators achieving 10Gb/s data transmission with a bit-error-rate below 10-12 and a measured power consumption of only 85fJ/bit. Through rigorous simulation and experimentation, we consider ultimate limits to silicon modulator bandwidth and power consumption.

Paper Details

Date Published: 12 February 2009
PDF: 8 pages
Proc. SPIE 7221, Photonics Packaging, Integration, and Interconnects IX, 72210M (12 February 2009); doi: 10.1117/12.810145
Show Author Affiliations
Michael R. Watts, Sandia National Labs. (United States)
Douglas C. Trotter, Sandia National Labs. (United States)
Ralph W. Young, Sandia National Labs. (United States)
Anthony L. Lentine, Sandia National Labs. (United States)
William A. Zortman, Sandia National Labs. (United States)


Published in SPIE Proceedings Vol. 7221:
Photonics Packaging, Integration, and Interconnects IX
Alexei L. Glebov; Ray T. Chen, Editor(s)

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