Energy-Efficient Integrated Photonic Devices for Future Optical Communication and Computing is coming at 10/07/2019 - 4:00pm
Gilfillan Auditorium Mon, 10/07/2019 - 4:00pm Alan Wang Associate professor, School of EECS, Oregon State University Abstract: Communication and computing has already consumed more than 5% of the world electricity. Reducing the energy consumption of existing information infrastructures requires fundamental breakthroughs in both devices and systems. Integrated photonics, especially silicon photonics, hold the promise to transform the realm of optical communication and optical computing, which can meet the explosive requirement of bandwidth and computation power for the decade to come. In this seminar, I will discuss a new type of extremely energy-efficient silicon photonic devices through the integration with transparent conductive oxides (TCOs), which can potential reduce the energy consumption of existing silicon photonic devices by three orders of magnitude. I will review recent research progress in my group for the development of TCO-gated silicon photonic devices, including silicon-TCO photonic crystal nanocavity modulators, silicon-TCO microring resonators with ultra-large E-O tuning efficiency, and broadband plasmonic-TCO electro-absorption modulators. We achieved 5Gbit/s E-O modulation speed and will also discuss the strategy to further improve the energy efficiency to atto-joule/bit (10-18J/bit) and operation bandwidth above 25 GHz. Bio: Read more: https://eecs.oregonstate.edu/colloquium/energy-efficient-integrated-phot... [1] [1] https://eecs.oregonstate.edu/colloquium/energy-efficient-integrated-photonic-devices-future-optical-communication-and-computing
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