Abstract
Correlated beams are important in classical and quantum communication as well as other technologies. However, classical amplifiers, which are essential for long transmission of correlated beams, degrade the correlation due to noise and due to the amplifier spectral response. We measure, with a novel high resolution single-shot measurement system, the impact of amplifiers on correlated beams. We develop a new method for analyzing the correlation between the signal and idler beams by choosing peaks in the pulses according to their power levels. We demonstrate how to tailor the correlation after the amplifier to obtain either higher or lower correlation. Our research may influence the future use of amplifiers in non-classical communication systems as well as the transmission of quantum information over long distances.
| Original language | English |
|---|---|
| Pages (from-to) | 1773-1781 |
| Number of pages | 9 |
| Journal | Optics Express |
| Volume | 30 |
| Issue number | 2 |
| DOIs | |
| State | Published - 17 Jan 2022 |
Bibliographical note
Publisher Copyright:© 2022 Optica Publishing Group under the terms of the Optica Open Access Publishing Agreement
Funding
Acknowledgments. This research was supported by the Israeli Science Foundation, grant number 205735, Israeli Ministry of Science and Technology, grant number 101821, Israel Innovation Authority (grant numbers 70002, 73795 and the XStable Eureka project), Pazy Foundation and Israeli Council for Higher Education. PAZY Foundation; Ministry of Science, Technology and Space (101821); Israel Science Foundation (205735, 2096/20).
| Funders | Funder number |
|---|---|
| Israel Innovation Authority | 70002, 73795 |
| Ministry of Science, Technology and Space | |
| Israel Science Foundation | 205735 |
| Council for Higher Education | |
| Ministry of science and technology, Israel | 101821 |