Zobrazeno 1 - 10
of 91
pro vyhledávání: '"Stefan Preussler"'
Publikováno v:
APL Photonics, Vol 8, Iss 8, Pp 086112-086112-12 (2023)
Spectrally efficient modulation formats become essential for optical network scaling as the demand for routed data streams exceeds the present wavelength-division multiplexing systems’ throughput. However, achieving high spectral efficiency at high
Externí odkaz:
https://doaj.org/article/7cc53bd4f30f4fe9bba172d794a1429d
Autor:
Mohamed I. Hosni, Karanveer Singh, Sourav Dev, Arezoo Zarif, Stefan Preussler, Ayman M. Mokhtar, Kambiz Jamshidi, Thomas Schneider
Publikováno v:
IEEE Photonics Journal, Vol 14, Iss 4, Pp 1-6 (2022)
Sampling is the primary functional step of an analogue to digital conversion, required for sensing, measurement, signal processing, metrology, and various data communication applications. Here we present, for the first time, to the best of our knowle
Externí odkaz:
https://doaj.org/article/82387b4b34ba47429557dff1d50b52e6
Publikováno v:
Scientific Reports, Vol 9, Iss 1, Pp 1-11 (2019)
Abstract The ability to measure optical signals with fast dynamics is of significant interest in many application fields. Usually, single-shot measurements of non-periodic signals can be enabled by time magnification methods. Like an optical lens in
Externí odkaz:
https://doaj.org/article/6cb2153abe9d47db87baf6502a14eeb8
Autor:
Edson P. da Silva, Robert Borkowski, Stefan Preussler, Fabian Schwartau, Simone Gaiarin, Miguel I. Olmedo, Armand Vedadi, Molly Piels, Michael Galili, Pengyu Guan, Sergei Popov, Camille-Sophie Bres, Thomas Schneider, Leif K. Oxenlowe, Darko Zibar
Publikováno v:
IEEE Photonics Journal, Vol 8, Iss 1, Pp 1-11 (2016)
We discuss the benefits and limitations of optical time-division multiplexing (OTDM) techniques based on the optical generation of a periodic train of sinc pulses for wavelength-division multiplexing (WDM) transmission at high baud rates. It is shown
Externí odkaz:
https://doaj.org/article/1024465927394f37a459e1d11d8d0d99
Publikováno v:
Sensors, Vol 19, Iss 13, p 2878 (2019)
In this article, we demonstrate the noise reduction and signal to noise ratio (SNR) enhancement in Brillouin optical time-domain analyzers (BOTDA). The results show that, although the main noise contribution comes from the Brillouin interaction itsel
Externí odkaz:
https://doaj.org/article/2e2ca262a66048578a9f3ea9d2ca7216
Autor:
Tony Granz, Julia Sophie Böke, Gerry Hamdana, Michael Martens, Arijit Misra, Stefan Preußler, Meinhard Schilling, Erwin Peiner, Thomas Schneider, Andreas Waag
Publikováno v:
Proceedings, Vol 2, Iss 13, p 1055 (2019)
A silicon photonic microresonator comprising two curved vertical grating couplers and a single suspended Si nanowaveguide (NWG) is developed to investigate the giant enhanced Brillouin scattering in subwavelength NWGs caused by photon-phonon interact
Externí odkaz:
https://doaj.org/article/ae011e32f8a54df09f484b470447d4b4
Autor:
Kambiz Jamshidi, Karanveer Singh, Arezoo Zarif, Thomas Schneider, Mohammed Elsayed, Stefan Preussler, Sourav Dev, Ayman Mokhtar
Publikováno v:
IEEE Photonics Journal 14 (2022) 4, 6646506.-https://doi.org/10.1109/JPHOT.2022.3197300--https://www.photonicssociety.org/publications/photonics-journal--https://ieeexplore.ieee.org/servlet/opac?punumber=4563994--http://www.bibliothek.uni-regensburg.de/ezeit/?2495610--1943-0655--1943-0647
Sampling is the primary functional step of an analogue to digital conversion, required for sensing, measurement, signal processing, metrology, and various data communication applications. Here we present, for the first time, to the best of our knowle
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0863c6a575f72e32800dac99a0db141f
http://publikationsserver.tu-braunschweig.de/get/71778
http://publikationsserver.tu-braunschweig.de/get/71778
Autor:
Karanveer Singh, Janosch Meier, Christian Kress, Arijit Misra, Tobias Schwabe, Stefan Preussler, J. Christoph Scheytt, Thomas Schneider
Publikováno v:
Next-Generation Optical Communication: Components, Sub-Systems, and Systems XI.
Autor:
Karanveer Singh, Christian Kress, Younus Mandalawi, Arijit Misra, Stefan Preussler, J. Christoph Scheytt, Thomas Schneider
Publikováno v:
Next-Generation Optical Communication: Components, Sub-Systems, and Systems XI.
Publikováno v:
Optical Fiber Communication Conference (OFC) 2022.
We propose and experimentally demonstrate a new scheme for all-optical coherent modulation format conversion based on vector summation facilitated by coherent spectral superposition with an electro-optic modulator without using any optical nonlineari