On-Chip Optical Interconnect

Autor: Keishi Ohashi, Seiichi Itabashi, Hiroaki Yukawa, Masayuki Mizuno, Masafumi Nakada, T. Watanabe, M. Kinoshita, N. Suzuki, Jun Akedo, T. Ueno, Kenichi Nishi, Koji Yamada, Tai Tsuchizawa, Koichi Nose, Daisuke Okamoto, S. Torii, T. Shimizu, Akiko Gomyo, Junichi Fujikata, K. Furue, Tsutomu Ishi, Jun Ushida
Rok vydání: 2009
Předmět:
Zdroj: Proceedings of the IEEE. 97:1186-1198
ISSN: 0018-9219
DOI: 10.1109/jproc.2009.2020331
Popis: We describe a cost-effective and low-power-consumption approach for on-chip optical interconnection. This approach includes an investigation into architectures, devices, and materials. We have proposed and fabricated a bonded structure of an Si-based optical layer on a large-scale integration (LSI) chip. The fabricated optical layer contains Si nanophotodiodes for optical detectors, which are coupled with SiON waveguides using surface-plasmon antennas. Optical signals were introduced to the optical layer and distributed to the Si nanophotodiodes. The output signals from the photodiodes were sent electrically to the transimpedance-amplifier circuitries in the LSI. The signals from the photodiodes triggered of the circuitries at 5 GHz. Since electrooptical modulators consume the most power in on-chip optical interconnect systems and require a large footprint, they are critical to establish on-chip optical interconnection. Two approaches are investigated: 1) an architecture using a fewer number of modulators and 2) high electrooptical coefficient materials.
Databáze: OpenAIRE