Zobrazeno 1 - 10
of 13
pro vyhledávání: '"Tianwen Qian"'
Autor:
Jakob Reck, Laurids von Emden, Klara Mihov, Martin Kresse, Madeleine Weigel, Tianwen Qian, Csongor Keuer, Philipp Winklhofer, Marcel Amberg, David de Felipe, Crispin Zawadzki, Moritz Kleinert, Norbert Keil, Martin Schell
Publikováno v:
Photonics, Vol 11, Iss 6, p 488 (2024)
This research demonstrates a method for the repeatable passive fiber optic coupling of single-mode waveguides with a micron-scale accuracy for high-precision disposables. The aim is to broaden the application of photonic integrated circuits (PICs) fr
Externí odkaz:
https://doaj.org/article/17c2488d9145486b8009ae6068e1419d
Autor:
Efstathios Andrianopoulos, Nikolaos K. Lyras, Evangelos Pikasis, Garrit Schwanke, Milan Deumer, Simon Nellen, Tianwen Qian, Georgia D. Ntouni, Eleftherios C. Loghis, Elias D. Tsirbas, Panteleimon-Konstantinos Chartsias, David De Felipe, Panos Groumas, Maria Massaouti, Christos Tsokos, Christos Kouloumentas, Dimitrios Kritharidis, Robert B. Kohlhaas, Norbert Keil, Martin Schell, Hercules Avramopoulos
Publikováno v:
IEEE Photonics Technology Letters. 35:237-240
Optoelectronic technology is expected to be the cornerstone of sub-THz communication systems, enabling access to and use of the vast frequency resources found in this portion of the spectrum. In this work we demonstrate a photonics-enabled sub-THz wi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::73ffbb1a5f40bd801bc4221b2e4de278
https://doi.org/10.1109/lpt.2023.3235932
https://doi.org/10.1109/lpt.2023.3235932
Autor:
Efstathios Andrianopoulos, Nikolaos K. Lyras, Christos Tsokos, Tianwen Qian, Simon Nellen, David de Felipe, Panos Groumas, Adam Raptakis, Lefteris Gounaridis, Norbert Keil, Christos Kouloumentas, Hercules Avramopoulos
Publikováno v:
IEEE PHOTONICS TECHNOLOGY LETTERS
We demonstrate the generation, of a mmWave signal via the injection of an optical frequency comb (OFC) into an integrated tunable dual distributed Bragg reflector (DBR) laser as well as the fiber transmission and the processing of this signal by an o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::aac39ccb7e7cf9c44af02a4941b7878a
https://doi.org/10.1109/lpt.2022.3196632
https://doi.org/10.1109/lpt.2022.3196632
Autor:
Efstathios Andrianopoulos, Milan Deumer, Tianwen Qian, Nikolaos Lyras, Simon Nellen, Evangelos Pikasis, Georgia Ntouni, Eleftherios Loghis, Elias Tsirbas, David de Felipe, Panos Groumas, Christos Tsokos, Maria Massaouti, Christos Kouloumentas, Dimitrios Kritharidis, Robert B. Kohlhaas, Norbert Keil, Martin Schell, Hercules Avramopoulos
Publikováno v:
Next-Generation Optical Communication: Components, Sub-Systems, and Systems XII.
Photonic integrated circuits (PICs) are one of the key enablers for beyond 5G networks. A novel generation of fully integrated photonic-enabled transceivers operating seamlessly in W- D- and THz-bands is developed within the EU funded project TERAWAY
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2e69422e65dd91f9aa607a704630429c
https://doi.org/10.1117/12.2648079
https://doi.org/10.1117/12.2648079
Autor:
Simon Nellen, Tianwen Qian, Garrit Schwanke, Sebastian Lauck, David de Felipe, Moritz Kleinert, Milan Deumer, Lars Liebermeister, Moritz Baier, Bjoern Globisch, Norbert Keil, Robert B. Kohlhaas, Martin Schell
Publikováno v:
Optics Express
For wireless networks beyond 5G, directivity and reconfigurability of antennas are highly relevant. Therefore, we propose a linear antenna array based on photodiodes operating at 300 GHz, and an optical phased array based on polymer waveguides to orc
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::122957d8919f374ecb815ff6b27d5c91
https://pubmed.ncbi.nlm.nih.gov/36522889
https://pubmed.ncbi.nlm.nih.gov/36522889
Autor:
Ran Cui, Tianwen Qian, Pai Peng, Elena Daskalaki, Jingjing Chen, Xiaowei Guo, Huyang Sun, Yu-Gang Jiang
Video moment retrieval aims at finding the start and end timestamps of a moment (part of a video) described by a given natural language query. Fully supervised methods need complete temporal boundary annotations to achieve promising results, which is
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::23465baddfa8b22ae801baea3c6cdc78
http://arxiv.org/abs/2204.09409
http://arxiv.org/abs/2204.09409
Autor:
Martin Schell, Norbert Keil, Moritz Kleinert, David de Felipe, Crispin Zawadzki, Madeleine Weigel, Martin Kresse, Michael Theurer, Hauke Conradi, Tianwen Qian
Publikováno v:
Integrated Optics: Devices, Materials, and Technologies XXVI.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::49386f26f032f81e601b09b44d53b1bf
https://doi.org/10.1117/12.2610737
https://doi.org/10.1117/12.2610737
Autor:
Bradley W. Snyder, Zerihun G. Tegegne, Nienke Nijenhuis, Tianwen Qian, David de Felipe, Simon Nellen, Milan Deumer, Y. Durvasa Gupta, Moritz Baier, Björn Globisch, Norbert Keil, Joost Van Kerkhof
Publikováno v:
Photonics West 2022
Optical Interconnects XXII
Optical Interconnects XXII
We describe the assembly of a 5G transceiver leveraging photonics for the generation, emission and detection of THz wireless signals. The transceiver and all associated control electronics and power supplies are designed for mounting in a mobile aeri
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::05f63ba4a8b137289ba4d45ecffd8596
Autor:
Tianwen Qian, Milan Deumer, Y Durvasa Gupta, Simon Nellen, Ben Schuler, Hauke Conradi, Martin Kresse, Jakob Reck, Klara Mihov, Moritz Kleinert, Madeleine Weigel, Crispin Zawadzki, David de Felipe, Björn Globisch, Moritz Baier, Norbert Keil, Martin Schell
Publikováno v:
Optical Fiber Communication Conference (OFC) 2022
2022 Optical Fiber Communications Conference and Exhibition (OFC)
2022 Optical Fiber Communications Conference and Exhibition (OFC)
An all-photonic THz-receiver PIC comprising an on-chip frequency stabilization scheme and a novel InP-based photoconductive antenna is presented. Characterization of the key photonic building blocks shows the functionality of the PIC.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::faf0a3a9efeb02e46532947eb58a6f9f
https://doi.org/10.1364/ofc.2022.w3d.6
https://doi.org/10.1364/ofc.2022.w3d.6
Autor:
Martin Schell, Crispin Zawadzki, Jakob Reck, Moritz Kleinert, David de Felipe, Tianwen Qian, Norbert Keil, Hauke Conradi, Lennart Jehle, Madeleine Weigel, Martin Kresse, Klara Mihov
Publikováno v:
ECOC
2021 European Conference on Optical Communication (ECOC)
2021 European Conference on Optical Communication (ECOC)
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2ce7a60496026b8f715ceb572f3d2842
https://doi.org/10.1109/ecoc52684.2021.9605865
https://doi.org/10.1109/ecoc52684.2021.9605865