Suppressing communication errors using quantum-enabled forward error correction

Published

September 28, 2023

Author(s)

Ivan Burenkov, FNU Nur Fajar Rizqi Annafianto, Jabir Marakkarakath Vadakkepurayil, Abdella Battou, Sergey Polyakov

Abstract

Scalable optical communication requires error identification and correction to protect and recover information from channel and detection noise. Forward error correction protects information transmitted with optical pulses by amending errors using auxiliary optical pulses combined into codewords. Forward error correction is used routinely in classical communications, but it never was applied in conjugation with the quantum measurement at the receiver. Here, we develop and experimentally demonstrate error correction protocols in classical communication link enhanced by quantum measurements' confidences [Phys. Rev. Lett. 128, 040404]. We achieve more than 80 dB error suppression and approximately 40 dB improvement of symbol error rates beyond the classical limit. With the obtained error rate below $10^-9}$, this approach enables reliable utilization of quantum receivers for ultra-low power optical communications, an important step toward improving the information capacity of optical links and scalable networks with coexisting quantum and classical channels in the same optical fiber.

Citation

AVS Quantum Science

Pub Type

Journals

Download Paper

https://doi.org/10.1116/5.0164396

Local Download

Keywords

Quantum receiver, quantum enhanced error correction

Citation

Burenkov, I. , Nur Fajar Rizqi Annafianto, F. , Marakkarakath Vadakkepurayil, J. , Battou, A. and Polyakov, S. (2023), Suppressing communication errors using quantum-enabled forward error correction, AVS Quantum Science, [online], https://doi.org/10.1116/5.0164396, https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=936094 (Accessed July 19, 2024)