Simple and reconfigurable photonics-based half adder and half subtracter

Henghao Chen, Hao Chen, Aoqi Li, Mingtong Liu, Erwin H.W. Chan

Research output: Contribution to journalArticlepeer-review

12 Downloads (Pure)

Abstract

A photonics-based digital signal processing structure that has the ability of realising half addition and half subtraction, is presented. It is based on applying the two digital inputs into a dual-polarisation modulator and designing the modulator bias voltages to realise the logical operations. After photodetection, a Sum output and a Carry output for half addition, or a Difference output and a Borrow output for half subtraction, can be generated. Switching between the half addition operation and the half subtraction operation can be achieved by simply changing a digital input amplitude and a modulator bias voltage. The proposed photonics-based digital signal processing structure is theoretically analysed. Using the system parameter setting obtained from the theoretical analysis, half addition and half subtraction operations are experimentally demonstrated.

Original languageEnglish
Article number130206
Pages (from-to)1-8
Number of pages8
JournalOptics Communications
Volume555
Early online date10 Dec 2023
DOIs
Publication statusPublished - 15 Mar 2024

Fingerprint

Dive into the research topics of 'Simple and reconfigurable photonics-based half adder and half subtracter'. Together they form a unique fingerprint.

Cite this