Oregon State University

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PhD Oral Preliminary Examination – Hao Li


Friday, October 2, 2015 10:00 AM - 12:00 PM

Design of Energy-Efficient High-Speed Silicon Photonics Transceiver
The rapid scaling of network bandwidth and datacenter throughput has motivated the wide adoption of high speed transceivers. Silicon photonics is one of the most promising technique to realize tightly integrated optical transceivers for next-generation interconnect infrastructures. Especially, photonics devices such as silicon ring resonator and waveguide photodetector provide a unique opportunity for circuit innovations.

This work explores the design of silicon photonics transmitter and receiver that utilize multiple techniques to realize 25Gbaud data transmission. A 5x25Gb/s hybrid-integrated silicon ring modulator WDM transmitter is implemented in 65nm CMOS that utilizes a novel AC-coupled differential driving topology to realize 4.4Vpp modulation amplitude and 7dB Extinction Ratio (ER). 2-Tap asymmetric Feed-Forward Equalizer (FFE) is implemented to effectively compensate for optical non-linearity. An average-power-based wavelength stabilization circuit is also demonstrated that enables robust data transmission over temperature variation.

Major Advisor: Patrick Chiang
Committee: Un-Ku Moon
Committee: Alan Wang
Committee: Arun Natarajan
GCR: Michelle Dolgos


Kelley Engineering Center (campus map)
4107
Nicole Thompson
1 541 737 3617
Nicole.Thompson at oregonstate.edu
Sch Elect Engr/Comp Sci
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