Zobrazeno 1 - 10
of 817
pro vyhledávání: '"Bradley, Thomas"'
Autor:
Kalla, Besma, Cappelletti, Martina, Hout, Menno van den, van Vliet, Vincent, Rommel, Simon, Palmieri, Luca, Bradley, Thomas, Okonkwo, Chigo
We propose an optimized optical vector network analyzer with automatic polarization control to stabilize the reference arm polarization throughout the sweep range. We demonstrate this technique, successfully removing the polarization-induced fading a
Externí odkaz:
http://arxiv.org/abs/2410.06728
Autor:
Gümüş, Kadir, Frazão, João dos Reis, Albores-Mejia, Aaron, Škorić, Boris, Liga, Gabriele, Gültekin, Yunus Can, Bradley, Thomas, Alvarado, Alex, Okonkwo, Chigo
In this paper we introduce a reconciliation protocol with a two-step error correction scheme using a short blocklength low rate code and a long blocklength high rate code. We show that by using this two-step decoding method it is possible to achieve
Externí odkaz:
http://arxiv.org/abs/2409.13667
Autor:
Gümüş, Kadir, Frazão, João dos Reis, van Vliet, Vincent, van der Heide, Sjoerd, Hout, Menno van den, Liga, Gabriele, Gültekin, Yunus Can, Albores-Mejia, Aaron, Bradley, Thomas, Alvarado, Alex, Okonkwo, Chigo
Continuous-variable quantum key distribution (CV-QKD) has been proposed as a method for securely exchanging keys to protect against the security concerns caused by potential advancements in quantum computing. In addition to optical fiber transmission
Externí odkaz:
http://arxiv.org/abs/2408.12522
Autor:
Afxenti, Ivi, Yu, Lijun, Shields, Taylor, Faccio, Daniele, Bradley, Thomas, Caspani, Lucia, Clerici, Matteo, Dada, Adetunmise C.
Advancements in quantum communication and sensing require improved optical transmission that ensures excellent state purity and reduced losses. While free-space optical communication is often preferred, its use becomes challenging over long distances
Externí odkaz:
http://arxiv.org/abs/2405.02993
Autor:
Honz, Florian, Prawits, Florian, Alia, Obada, Sakr, Hesham, Bradley, Thomas, Zhang, Cong, Slavík, Radan, Poletti, Francesco, Kanellos, George, Nejabati, Reza, Walther, Philip, Simeonidou, Dimitra, Hübel, Hannes, Schrenk, Bernhard
As quantum key distribution has reached the maturity level for practical deployment, questions about the co-integration with existing classical communication systems are of utmost importance. To this end we demonstrate how the co-propagation of class
Externí odkaz:
http://arxiv.org/abs/2403.13503
Autor:
Gümüş, Kadir, Frazão, João dos Reis, van Vliet, Vincent, van der Heide, Sjoerd, Hout, Menno van den, Albores-Mejia, Aaron, Bradley, Thomas, Okonkwo, Chigo
We experimentally demonstrate adaptive reconciliation for continuous-variable quantum key distribution over a turbulent free-space optical channel. Additionally, we propose a method for optimising the reconciliation efficiency, increasing secret key
Externí odkaz:
http://arxiv.org/abs/2312.13835
We introduce a simplified method for calculating the loss function for use in geometric shaping, allowing for the optimisation of high dimensional constellations. We design constellations up to 12D with 4096 points, with gains up to 0.31 dB compared
Externí odkaz:
http://arxiv.org/abs/2307.05179
Autor:
Honz, Florian, Prawits, Florian, Alia, Obada, Sakr, Hessam, Bradley, Thomas, Zhang, Cong, Slavík, Radan, Poletti, Francesco, Kanellos, George, Nejabati, Reza, Walther, Philip, Simeonidou, Dimitra, Hübel, Hannes, Schrenk, Bernhard
We successfully integrate coherent one-way QKD at 1538 nm in a 7.7 km long hollow-core fiber link with 17 EDFA-boosted C-band data channels from 1540.56 to 1558.17 nm, aggregating a power of 11 dBm. QKD operation proves successful despite the wideban
Externí odkaz:
http://arxiv.org/abs/2210.00233
Autor:
Hout, Menno van den, van der Heide, Sjoerd, Bradley, Thomas, Velazquez-Benitez, Amado M., Fontaine, Nicolas K., Ryf, Roland, Chen, Haoshuo, Mazur, Mikael, Antonio-López, Jose Enrique, Alvarado-Zacarias, Juan Carlos, Amezcua-Correa, Rodrigo, Correa, Marianne Bogot-Astruc Adrian Amezcua, Sillard, Pierre, Okonkwo, Chigo
Off-axis digital holography is used to align a few-mode fiber to a multi-mode fiber in a free-space optical setup. Alignment based on power coupling measurements alone cannot guarantee low mode-dependent loss. The proposed alignment method enables re
Externí odkaz:
http://arxiv.org/abs/2208.02904
Autor:
Alia, Obada, Tessinari, Rodrigo S, Bahrani, Sima, Bradley, Thomas D, Sakr, Hesham, Harrington, Kerrianne, Hayes, John, Chen, Yong, Petropoulos, Periklis, Richardson, David, Poletti, Francesco, Kanellos, George T, Nejabati, Reja, Simeonidou, Dimitra
The feasibility of coexisting a quantum channel with carrier-grade classical optical channels over Hollow Core Nested Antiresonant Nodeless Fibre (HC-NANF) is experimentally explored for the first time in terms of achievable quantum bit error rate (Q
Externí odkaz:
http://arxiv.org/abs/2203.14621