Zobrazeno 1 - 10
of 17
pro vyhledávání: '"Oskars Ozolinš"'
Autor:
Hamza Dely, Mahdieh Joharifar, Laureline Durupt, Armands Ostrovskis, Richard Schatz, Thomas Bonazzi, Gregory Maisons, Djamal Gacemi, Toms Salgals, Lu Zhang, Sandis Spolitis, Yan-Ting Sun, Vjačeslavs Bobrovs, Xianbin Yu, Isabelle Sagnes, Konstantinos Pantzas, Angela Vasanelli, Oskars Ozolins, Xiaodan Pang, Carlo Sirtori
Publikováno v:
Nature Communications, Vol 15, Iss 1, Pp 1-11 (2024)
Abstract The large mid-infrared (MIR) spectral region, ranging from 2.5 µm to 25 µm, has remained under-exploited in the electromagnetic spectrum, primarily due to the absence of viable transceiver technologies. Notably, the 8–14 µm long-wave in
Externí odkaz:
https://doaj.org/article/d52a725a66d74d0fbd0be6ab17330be2
Autor:
Svitlana Matsenko, Oleksiy Borysenko, Sandis Spolitis, Aleksejs Udalcovs, Lilita Gegere, Aleksandr Krotov, Oskars Ozolins, Vjaceslavs Bobrovs
Publikováno v:
Entropy, Vol 24, Iss 1, p 122 (2022)
Forward error correction (FEC) codes combined with high-order modulator formats, i.e., coded modulation (CM), are essential in optical communication networks to achieve highly efficient and reliable communication. The task of providing additional err
Externí odkaz:
https://doaj.org/article/3e4df1ad6b0d4edebc1d5ec8e2fe8002
Autor:
Kjell Brunnström, Anders Djupsjöbacka, Johsan Billingham, Katharina Wistel, Börje Andrén, Oskars Ozolinš, Nicolas Evans
Publikováno v:
Electronic Imaging. 35:259-1
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4eb2e6ad5e27380ffc905abc83665bd9
https://doi.org/10.2352/ei.2023.35.10.hvei-259
https://doi.org/10.2352/ei.2023.35.10.hvei-259
Autor:
Shi Jia, Mu-Chieh Lo, Lu Zhang, Oskars Ozolins, Aleksejs Udalcovs, Deming Kong, Xiaodan Pang, Robinson Guzman, Xianbin Yu, Shilin Xiao, Sergei Popov, Jiajia Chen, Guillermo Carpintero, Toshio Morioka, Hao Hu, Leif K. Oxenløwe
Publikováno v:
Nature Communications, Vol 13, Iss 1, Pp 1-8 (2022)
A photonic Terahertz source based on injection-locking an integrated dual-laser chip generates and transmits a 131 Gbps THz signal over 10.7-m distance, showing great potential towards fully integrated and energy-efficient THz transmitters for 6G.
Externí odkaz:
https://doaj.org/article/18c433ed28c94aedbd1e65a4c35be1e3
Autor:
Yuchuan Fan, Xiaodan Pang, Aleksejs Udalcovs, Carlos Natalino, Lu Zhang, Sandis Spolitis, Vjaceslavs Bobrovs, Richard Schatz, Xianbin Yu, Marija Furdek, Sergei Popov, Oskars Ozolins
Publikováno v:
IEEE Photonics Journal, Vol 14, Iss 4, Pp 1-8 (2022)
Error vector magnitude (EVM) is a metric for assessing the quality of m-ary quadrature amplitude modulation (mQAM) signals. Recently proposed deep learning techniques, e.g., feedforward neural networks (FFNNs) -based EVM estimation scheme leverage fa
Externí odkaz:
https://doaj.org/article/f0698daa211d482d9386b7ec066aa8d5
Autor:
Rui Lin, Aleksejs Udalcovs, Oskars Ozolins, Xiaodan Pang, Lin Gan, Ming Tang, Songnian Fu, Sergei Popov, Thiago Ferreira Da Silva, Guilherme B. Xavier, Jiajia Chen
Publikováno v:
IEEE Access, Vol 8, Pp 78836-78846 (2020)
Quantum key distribution (QKD) is regarded as an alternative to traditional cryptography methods for securing data communication by quantum mechanics rather than computational complexity. Towards the massive deployment of QKD, embedding it with the t
Externí odkaz:
https://doaj.org/article/bb4d9a0ad1cc405787388ced5c4faa4b
Autor:
Aleksejs Udalcovs, Marco Levantesi, Patryk Urban, Darli A. A. Mello, Roberto Gaudino, Oskars Ozolins, Paolo Monti
Publikováno v:
IEEE Access, Vol 8, Pp 223562-223573 (2020)
The article analyzes the total cost of ownership (TCO) of 5G fronthauling solutions based on analog and digital radio-over-fiber (RoF) architectures in cloud radio access networks (C-RANs). The capital and operational expenditures (CAPEX, OPEX) are a
Externí odkaz:
https://doaj.org/article/2dd00e4e80224ca4b24ec8bef55bb44c
Autor:
Kaspars Zakis, Sergejs Olonkins, Aleksejs Udalcovs, Ingars Lukosevics, Dmitrijs Prigunovs, Jurgis Grube, Liga Bikse, Andis Supe, Oskars Ozolins, Sandis Spolitis, Vjaceslavs Bobrovs
Publikováno v:
Photonics, Vol 9, Iss 7, p 457 (2022)
Cladding-pumped erbium (Er3+)/ytterbium (Yb3+)-co-doped fiber amplifiers are more advantageous at high output powers. However, this amplification technique also has potential in telecom-related applications. These types of amplifiers have complex pro
Externí odkaz:
https://doaj.org/article/203397935c6345eb898c7ddb819abbac
Autor:
Toms Salgals, Janis Alnis, Oskars Ozolins, Alexey V. Andrianov, Elena A. Anashkina, Inga Brice, Roberts Berkis, Xiaodan Pang, Aleksejs Udalcovs, Jurgis Porins, Sandis Spolitis, Vjaceslavs Bobrovs
Publikováno v:
Applied Sciences, Vol 12, Iss 9, p 4722 (2022)
Kerr optical frequency combs (OFCs) based on silica microsphere whispering gallery mode resonator (WGMR) have various applications where they are used as a light source. For telecommunication purposes, WGMR-based Kerr-OFC comb generators can be physi
Externí odkaz:
https://doaj.org/article/6c9d47def1144657b8aba15cb7d35938
Autor:
Aditya Kakkar, Jaime Rodrigo Navarro, Richard Schatz, Xiaodan Pang, Oskars Ozolins, Aleksejs Udalcovs, Hadrien Louchet, Sergei Popov, Gunnar Jacobsen
Publikováno v:
Scientific Reports, Vol 7, Iss 1, Pp 1-10 (2017)
Abstract Coherent communication networks are based on the ability to use multiple dimensions of the lightwave together with electrical domain compensation of transmission impairments. Electrical-domain dispersion compensation (EDC) provides many adva
Externí odkaz:
https://doaj.org/article/d5810195914249a2b4208aa8d00fdc63