Abstract

Compared to its electronic counterpart, optically performed matrix convolution can accommodate phaseencoded data at high rates while avoiding optical-toelectronic-to-optical(OEO) conversions. We experimentally demonstrate a reconfigurable matrix convolution of quadrature phase-shift keying (QPSK)-encoded input data. The two-dimensional (2-D) input data is serialized, and its time-shifted replicas are generated. This 2-D data is convolved with a 1-D kernel with coefficients, which are applied by adjusting the relative phase and amplitude of the kernel pumps. Time-shifted data replicas (TSDRs) and kernel pumps are coherently mixed using nonlinear wave mixing in a periodically poled lithium niobate (PPLN) waveguide. To show the tunability and reconfigurability of this approach, we vary the kernel coefficients, kernel sizes (eg, 2× 1 or 3× 1), and input data rates (eg, 6–20 Gbit/s). The convolution results are …

Metadata

publication

year

2024

publication date

2024

authors

Amir Minoofar, Abdulrahman Alhaddad, Wing Ko, Narek Karapetyan, Ahmed Almaiman, Huibin Zhou, Muralekrishnan Ramakrishnan, MURALI ANNAVARAM, Moshe Tur, Jonathan Habif, Alan Willner

link

https://opg.optica.org/ol/upcoming_pdf.cfm?id=530189