Dissertation Talk: Energy-efficient and High-bandwidth Density Monolithic Optical Transceivers in Advanced CMOS Processes

Seminar | May 8 | 10-11 a.m. | 521 Cory Hall

 Sajjad Moazeni, EECS

 Electrical Engineering and Computer Sciences (EECS)

Today’s conventional cloud computing and mobile platforms have been challenged by the advent of Artificial Intelligence (AI) and Internet of Things (IoT). The performance and diversity requirements of these applications demand the shift towards hyper-scale datacenters, Exascale high-performance computing (HPC), energy-efficient edge computing, and new sensing and imaging modalities. My research goal is to design and implement large-scale and energy-efficient integrated systems that answer these technological changes by merging state-of-the-art electronics with photonics.

In this talk, I will describe several monolithic photonics platforms in advanced CMOS technologies that were designed as key enablers for the next-generation of integrated systems: (1) Using unmodified CMOS in 32/45nm SOI nodes places photonics next to the fastest transistors (2) Poly-silicon based photonics in bulk CMOS as a path for embedding photonics in the most advanced CMOS nodes (sub-10nm). I will present system results using these platforms for the immediate application area of energy-efficient and high-bandwidth density optical transceivers. I will also explain the importance of having an all-encompassing design methodology of circuit and systems, devices, and process and integration in designing electronic-photonic integrated systems. These integrated system design methodologies can unlock new functionalities and revolutionize many applications in HPC, high-bandwidth wireless connectivity, LiDAR, bio-sensing, etc.

Advisor: Prof. Vladimir Stojanovic