posted on 2023-01-12, 14:32authored byRamesh Kudalippalliyalil, Sujith Chandran, Ajey P. Jacob, Akhilesh Jaiswal
Optical static random access memory (O-SRAM) is one of the key components required for achieving the goal of ultra-fast, general-purpose optical computing. We propose and design a novel O-SRAM using fabrication-friendly photonics device components such as cross-coupled micro-ring resonators and photodiodes. Based on the chosen photonic components, the memory operates at a speed of 20 Gb/s and requires ultra-low static (switching) energy of ~ 16.7 aJ/bit (~ 1.04 pJ/bit) to store a single bit. The footprint of the bit cell is ~ 2400 {\mu}m^2. The proposed O-SRAM can be configured in a 2D memory array by replicating the bit-cells along rows and columns for creating ultra-large scale on-chip optical memory sub-system. Such manufacturing-friendly, large-scale optical-SRAM could form the underlying memory backbone for photonics integrated circuits with wide applications in novel computing and networking.
History
Disclaimer
This arXiv metadata record was not reviewed or approved by, nor does it necessarily express or reflect the policies or opinions of, arXiv.