Zobrazeno 1 - 10
of 36
pro vyhledávání: '"Galina Georgieva"'
Autor:
Pascal M. Seiler, Galina Georgieva, Anna Peczek, Matthieu Oberon, Christian Mai, Stefan Lischke, Andrea Malignaggi, Lars Zimmermann
Publikováno v:
IEEE Photonics Journal, Vol 15, Iss 3, Pp 1-6 (2023)
In this work, we present an O-band dual-polarization coherent receiver optical sub-assembly (cROSA), monolithically integrated in a 0.25 $\mu$m BiCMOS technology. The receiver features 248 nm deep ultra violet compatible 2-dimensional grating coupler
Externí odkaz:
https://doaj.org/article/f2272133047745d994dfd2d30a0b9787
Autor:
Galina Georgieva, Matheus Sena, Pascal M. Seiler, Klaus Petermann, Johannes Fischer, Lars Zimmermann
Publikováno v:
IEEE Photonics Journal, Vol 14, Iss 5, Pp 1-11 (2022)
Silicon photonic two-dimensional grating couplers for C- and O-band dual-polarization coherent transceivers are analyzed with respect to their polarization splitting/combining performance. Due to scattered light in the grating's plane, a linear cross
Externí odkaz:
https://doaj.org/article/9d34af677ea64a22b2301a1955fb6f8d
Autor:
Aleksandra Cherneva, Zoran Stankov, Naidenka Zlatareva, Iveta Tasheva, Georgi Dobrev, Galina Georgieva, Ivo Petrov
Publikováno v:
Българска кардиология, Vol 26, Iss 1, Pp 58-70 (2020)
We report a case of a high-risk 73-year–old patient with a combined aortic valve disease with predominant severe, symptomatic aortic regurgitation and a history of an end-stage respiratory failure with prohibitive surgical risk who was successfully
Externí odkaz:
https://doaj.org/article/6642c91e5c404ee38c9bae7ba76b7231
Publikováno v:
Journal of the European Optical Society-Rapid Publications, Vol 16, Iss 1, Pp 1-11 (2020)
Abstract Focusing grating couplers for the excitation of the fundamental transverse-magnetic (TM) mode in integrated silicon photonic waveguides are designed and characterized under the boundary conditions of a photonic BiCMOS foundry. Two types of w
Externí odkaz:
https://doaj.org/article/419996e5ccce4be2a917c88b8eafc909
Autor:
Galina Georgieva
Publikováno v:
Bulgarski Ezik i Literatura-Bulgarian Language and Literature. 64:517-535
Explanation, Narration and Lecture as teaching methods are criticized by many authors and students, but the teachers prefer using these methods. The requirements about the characteristics of language and style for effective use of these methods are t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ede536b6ff4af32154c31d933c8794ff
https://doi.org/10.53656/bel2022-5-6gg
https://doi.org/10.53656/bel2022-5-6gg
Autor:
Karsten Voigt, Pascal M. Seiler, Georg Winzer, Galina Georgieva, Anna Peczek, Adel Fatemi, Stefan Lischke, Lars Zimmermann
Publikováno v:
Frontiers of Optoelectronics. 14:414-425
Upcoming generations of coherent intra/inter data center interconnects currently lack a clear path toward a reduction of cost and power consumption, which are the driving factors for these data links. In this work, the tradeoffs associated with a tra
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fa44c2ef218f066c110bdc5ed1637443
https://doi.org/10.1007/s12200-021-1242-0
https://doi.org/10.1007/s12200-021-1242-0
Autor:
Galina Georgieva
Publikováno v:
EDULEARN Proceedings.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e181d8caa2ff98c3913c0d2d4d11559a
https://doi.org/10.21125/edulearn.2022.2207
https://doi.org/10.21125/edulearn.2022.2207
Autor:
Galina Georgieva
Publikováno v:
EDULEARN Proceedings.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7402cc1a5031f95fe105abc6f87341ad
https://doi.org/10.21125/edulearn.2022.2208
https://doi.org/10.21125/edulearn.2022.2208
Autor:
Иво Петров Aleksandra Cherneva, Naidenka Zlatareva, Georgi Dobrev, Galina Georgieva, Iveta Tasheva, Ivo Petrov, Zoran Stankov
Publikováno v:
Българска кардиология, Vol 26, Iss 1, Pp 58-70 (2020)
We report a case of a high-risk 73-year–old patient with a combined aortic valve disease with predominant severe, symptomatic aortic regurgitation and a history of an end-stage respiratory failure with prohibitive surgical risk who was successfully
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b4c534421dea5ed280d17f1c98857ebf
https://journal.bgcardio.org/article/53002/
https://journal.bgcardio.org/article/53002/
Toward 2D grating coupler enabled O-band coherent links based on SiGe photonic electronic technology
Publikováno v:
Japanese Journal of Applied Physics. 62:SC0807
Coherent techniques for short reach intra-datacenter optical interconnects are currently intensely discussed. This article reports progress on previous work that analyzed the benefits of switching from C- to O-band optics with regard to digital signa
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bfe4eab7ba7eff24d6a280b6442bb48a
https://doi.org/10.35848/1347-4065/acb4fe
https://doi.org/10.35848/1347-4065/acb4fe