학술논문
Operating Fiber Networks in the Quantum Limit
Document Type
Periodical
Author
Source
Journal of Lightwave Technology J. Lightwave Technol. Lightwave Technology, Journal of. 41(22):6865-6874 Nov, 2023
Subject
Language
ISSN
0733-8724
1558-2213
1558-2213
Abstract
We consider all-optical networks from a quantum perspective. We show that optimal quantum receivers allow a $\sim 57\%$ decrease in energy consumption of all-optical amplifiers. Furthermore, we prove that quantum receivers allow for a logarithmic scaling of the system capacity with the number of pulses per second, while standard Shannon-type systems are limited by the transmit power. Based on our findings we argue for a new approach to optical communication network design, wherein in-line amplifiers are operated at very low gains and in conjunction with high-spectral-bandwidth fiber and a quantum receiver, enhancing data transmission in a practically relevant quantum limit.