Abstract

Networks can play a key role in high-speed and reconfigurable arithmetic computing. However, two performance bottlenecks may arise when: (i) relying solely on electronics to handle computation for multiple data channels at high data rates, and (ii) the data streams input to a processing node (PN) are transmitted as phase-encoded signals over an optical network. We experimentally demonstrate the operation of optically-assisted reconfigurable average of two 4-phase-encoded data channels at 10- and 20-Gbaud rates. Our input signals are two streams of 2-bit numbers representing a binary floating-point format, and the operation results in 7-phase-encoded output signals represented by 3-bit numbers. The average operation is achieved in three stages: (1) phase encoding and division—using an optical modulator to encode the data streams; (2) summation—using a highly nonlinear fiber (HNLF); and (3) multicast …

Date

2023

Authors

Amir Minoofar, Narek Karapetyan, Ahmed Almaiman, Huibin Zhou, Hao Song, Kaiheng Zou, Wing Ko, Muralekrishnan Ramakrishnan, Murali Annavaram, Jonathan L Habif, Moshe Tur, Alan E Willner

Journal

Optics Letters

Volume

48

Issue

17

Pages

4617-4620

Publisher

Optica Publishing Group