Zobrazeno 1 - 10
of 11
pro vyhledávání: '"Atchutananda Surampudi"'
Autor:
Atchutananda Surampudi, Guanxiong Zhang, Ravinder Singh, Grahame Faulkner, Dominic C. O’Brien, Martin J. Booth, Stephen M. Morris
Publikováno v:
Crystals, Vol 13, Iss 12, p 1615 (2023)
Luminescent optical concentrators are thin films containing fluorescent dyes that enable light collection over a wide field of view without the need to track the path of the Sun. However, a disadvantage when using luminescent concentrators is that th
Externí odkaz:
https://doaj.org/article/9d66275cea4f47eb9b362e917bc575f7
Autor:
Wajahat Ali, Ravinder Singh, Atchutananda Surampudi, Dominic O'Brien, Grahame Faulkner, Steve Collins, Amna Riaz
The range of transmitters, detectors and other components that can be used in optical wireless links means that they can have a wide variety of frequency responses. Both pre- and post- equalization have been used in optical wireless systems to increa
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::43a76b522cf942fad6021aabf63a3c35
https://doi.org/10.1109/jlt.2021.3125011
https://doi.org/10.1109/jlt.2021.3125011
Autor:
Atchutananda Surampudi, Ravinder Singh, Guanxiong Zhang, Grahame Faulkner, Martin J. Booth, Steve J. Elston, Dominic O'Brien, Stephen M. Morris
Publikováno v:
2022 IEEE Photonics Conference (IPC).
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ced188dd6b4ee34cd41f3245738ff3d8
https://doi.org/10.1109/ipc53466.2022.9975470
https://doi.org/10.1109/ipc53466.2022.9975470
Publikováno v:
IEEE Photonics Technology Letters. 33:912-915
Their programmability means that digital pre-equalization techniques are more flexible than analog circuit equalizers. However, their performance depends on the number of samples per data symbol needed to accurately represent the pre-equalized time d
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cbecb9fb30fb6202cf5ff379415957d7
https://doi.org/10.1109/lpt.2021.3069115
https://doi.org/10.1109/lpt.2021.3069115
Autor:
Guanxiong Zhang, Steve J. Elston, Andy Schreier, Grahame Faulkner, Atchutananda Surampudi, Dominic O'Brien, Stephen M. Morris
In this paper, we demonstrate dynamic optical beam-steering of a band-edge chiral nematic liquid crystal (LC) laser that does not involve any change in the configuration of the helical structure. This beam-steering is achieved by exploiting the circu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d2f03dba193d91b59d029af38d351f73
https://ora.ox.ac.uk/objects/uuid:6c419ad3-ae29-4116-acc9-61b0030a0fd8
https://ora.ox.ac.uk/objects/uuid:6c419ad3-ae29-4116-acc9-61b0030a0fd8
Autor:
Atchutananda Surampudi
Publikováno v:
Journal of Optical Communications.
Co-channel interference in the downlink of LiFi attocell networks significantly decreases the network performance in terms of rate. Analysis of multiple access schemes is essential to mitigate interference and improve rate. The light-emitting diodes
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::62867d9ed982a8645c73c6a058f41323
https://doi.org/10.1515/joc-2021-0067
https://doi.org/10.1515/joc-2021-0067
Autor:
Steve Collins, Atchutananda Surampudi
Publikováno v:
2020 IEEE Photonics Conference (IPC).
A simple approach to digital pre-equalization is described whose performance depends upon the number of time points needed to represent each pre-equalized bit. This parameter is investigated using a white LED as an example system which highlights the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2174f770488c94ac2411b51fba492abb
https://doi.org/10.1109/ipc47351.2020.9252332
https://doi.org/10.1109/ipc47351.2020.9252332
Autor:
Maria Freire, Antoine Lavignotte, Cédric Ware, Eloise De Carvalho Rodrigues, Atchutananda Surampudi, Franck Gillet, Catherine Lepers
Publikováno v:
Proceedings ACP 2018 : Asia Communication and Photonics Conference
ACP 2018 : Asia Communication and Photonics Conference
ACP 2018 : Asia Communication and Photonics Conference, Oct 2018, Hangzhou, China. pp.1-3, ⟨10.1109/ACP.2018.8595878⟩
ACP 2018 : Asia Communication and Photonics Conference
ACP 2018 : Asia Communication and Photonics Conference, Oct 2018, Hangzhou, China. pp.1-3, ⟨10.1109/ACP.2018.8595878⟩
International audience; A semiconductor Optical Amplifier (SOA)-based 2x2 photonic integrated switch has been designed and fabricated in the framework of the ANR N-GREEN project (1),(2). Here, we report on the experimental setup and the results obtai
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::06ca2734a2223153bad9daa9f4bc38ca
https://hal.archives-ouvertes.fr/hal-01980405
https://hal.archives-ouvertes.fr/hal-01980405
Natural calamities and disasters disrupt the conventional communication setups and the wireless bandwidth becomes constrained. A safe and cost-effective solution for communication and data access in such scenarios is long needed. Light-Fidelity (Li-F
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c8ed9b45aca9aef15526ed29f28c4443
http://arxiv.org/abs/1712.04687
http://arxiv.org/abs/1712.04687
Wireless access to data using visible light, popularly known as light-fidelity (Li-Fi), is one of the key emerging technologies which promises huge bandwidths and data rates. In Li-Fi, the data is modulated on optical intensities and transmitted and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a4ddc2b306ffceca0eb4d9a18f77fb71
http://arxiv.org/abs/1712.04694
http://arxiv.org/abs/1712.04694