TY - JOUR
T1 - Performance Requirements for Terabit-Class Silicon Photonic Links Based on Cascaded Microring Resonators
AU - London, Yanir
AU - Van Vaerenbergh, Thomas
AU - Ramini, Luca
AU - Rizzo, Anthony J.
AU - Sun, Peng
AU - Kurczveil, Geza
AU - Seyedi, Ashkan
AU - Rhim, Jinsoo
AU - Fiorentino, Marco
AU - Bergman, Keren
N1 - Funding Information:
Manuscript received October 17, 2019; revised December 12, 2019; accepted December 16, 2019. Date of publication December 23, 2019; date of current version July 14, 2020. This work was supported by the U.S. Department of Energy under LLNS Subcontract B621301. The work of A. J. Rizzo was supported in part by the Department of Defense Science, Math, and Research for Transformation Scholarship by The Under Secretary of Defense-Research and Engineering (USD/R&E) and in part by National Defense Education Program (NDEP)/BA-1, Basic Research. (Corresponding author: Yanir London.) Y. London, A. J. Rizzo, and K. Bergman are with the Department of Electrical Engineering, Columbia University, New York, NY 10027 USA (e-mail: yl3931@columbia.edu; ajr2227@columbia.edu; bergman@ee.columbia.edu).
Publisher Copyright:
© 1983-2012 IEEE.
PY - 2020/7/1
Y1 - 2020/7/1
N2 - The electrical interconnects in high performance computing (HPC) systems are reaching their bandwidth capacities in supporting data-intensive applications. Currently, communication between compute nodes through these interconnects is the main bottleneck for overall HPC system performance. Optical interconnects based on the emerging silicon photonics (SiP) platform are considered to be a promising replacement to boost the speed of the data transfer with reduced cost and energy consumption compared to electrical interconnects. In this paper, we present a comprehensive analysis of a comb source microring-based SiP link architecture with p-i-n photodetectors. In particular, we direct our focus on improved grating coupler and bus waveguide designs to reduce the link power penalties. Additionally, we map the required performance from the comb laser to provide an aggregated data rate of 1 Tbps under the constraints of free spectral range (FSR) and nonlinearities of the microring resonators (MRRs). We show that a select few comb configurations satisfy these requirements, and energy consumption as low as 3,frac{text{pJ}}{text{bit}} is achievable.
AB - The electrical interconnects in high performance computing (HPC) systems are reaching their bandwidth capacities in supporting data-intensive applications. Currently, communication between compute nodes through these interconnects is the main bottleneck for overall HPC system performance. Optical interconnects based on the emerging silicon photonics (SiP) platform are considered to be a promising replacement to boost the speed of the data transfer with reduced cost and energy consumption compared to electrical interconnects. In this paper, we present a comprehensive analysis of a comb source microring-based SiP link architecture with p-i-n photodetectors. In particular, we direct our focus on improved grating coupler and bus waveguide designs to reduce the link power penalties. Additionally, we map the required performance from the comb laser to provide an aggregated data rate of 1 Tbps under the constraints of free spectral range (FSR) and nonlinearities of the microring resonators (MRRs). We show that a select few comb configurations satisfy these requirements, and energy consumption as low as 3,frac{text{pJ}}{text{bit}} is achievable.
KW - Energy efficiency
KW - high performance computing
KW - integrated photonics
KW - optical interconnections
KW - ring resonators
KW - silicon photonics
KW - wavelength division multiplexing
UR - http://www.scopus.com/inward/record.url?scp=85088538043&partnerID=8YFLogxK
U2 - 10.1109/JLT.2019.2961455
DO - 10.1109/JLT.2019.2961455
M3 - Article
AN - SCOPUS:85088538043
SN - 0733-8724
VL - 38
SP - 3469
EP - 3477
JO - Journal of Lightwave Technology
JF - Journal of Lightwave Technology
IS - 13
M1 - 8938789
ER -
