LNOI based architecture for local buffered photonic computing

The development of large-scale computational models and the need for low latency responses have correspondingly prompted a search for architectures which can reduce the cost and power demanded to realize these systems. In the context of Integrated Photonic Circuits, we present a further degree of improvement that can be achieved in crossbar systems by employing temporal buffering of a modulated signal on-chip. Herein, we demonstrate a system for local temporal interweaving on single photonic chip using a Lithium Niobate on Insulator platform. The as-fabricated device utilizes an on-chip modulator with a low Vpi of ~2.2V cm in conjunction with a circulating memory buffer clocked at 4 GHz. We effectively benchmark this system with a small device footprint on traditional image convolution applications.