Abstract

Recent interest has grown in processing matrix operations within the optical domain due to its potential advantages in bandwidth, latency, and parallelism. While optical implementations of matrix-vector multiplication (MVM) have been demonstrated, they still partially rely on the electronic domain to perform the matrix operation. In this paper, we demonstrate MVM using nonlinear wave mixing, enabling the matrix operation to be performed in the optical domain. Each column of the matrix is modulated onto different subcarriers, in which the column elements are serialized in time. The vector elements are encoded onto separate CW tones at different wavelengths. The MVM operation is carried out using nonlinear wave mixing in a single periodically poled lithium niobate waveguide, in which the elements of the output vector are serialized in time. We show MVM at two different clock rates (3 and 5?GHz) and for different …

Date

2025

Authors

Wing Ko, Abdulrahman Alhaddad, Amir Minoofar, Hongkun Lian, Huibin Zhou, Muralekrishnan Ramakrishnan, Zile Jiang, Xinzhou Su, Moshe Tur, Jonathan L Habif, Alan E Willner

Journal

Optics Letters

Volume

50

Issue

12

Pages

4018-4021

Publisher

Optica Publishing Group