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High-speed optical data transmission for detector instrumentation in particle physics

Karnick, Djorn

Abstract (englisch):
This work discusses the advantage of optical transmission utilizing wavelength-division multiplexing for the read-out of experimental data in detector instrumentation in high-energy physics, astroparticle physics or photon science. A multi-channel optical transmitter is developed as the core component on a silicon-on-insulator platform. It implements Mach-Zehnder modulators with a depletion-type pn-phase shifter in each arm, while the (de )multiplexers rely on planar concave gratings. The modulator design is expected to support a symbol rate in the range 40 GBd even with a phase shifter length of 3 mm. The development of an efficient simulation method is presented, which allows for the reliable prediction of the steady-state modulator characteristics. Furthermore, this work addresses the packaging technology for grating-coupled silicon photonic components. In particular, a fabrication and assembly process for a planar fiber-to-chip coupling using angle-polished single-mode fibers is developed. A long-term-stable coupling with a small footprint is achieved, of which the coupling efficiency is only weakly dependent on ambient conditions.

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Volltext §
DOI: 10.5445/IR/1000105691
Veröffentlicht am 09.03.2020
Cover der Publikation
Zugehörige Institution(en) am KIT Institut für Prozessdatenverarbeitung und Elektronik (IPE)
Publikationstyp Hochschulschrift
Publikationsdatum 09.03.2020
Sprache Englisch
Identifikator KITopen-ID: 1000105691
HGF-Programm 54.02.01 (POF III, LK 01)
Optische Signalübertragung
Verlag Karlsruhe
Umfang XI, 139 S.
Abschlussart Dissertation
Fakultät Fakultät für Elektrotechnik und Informationstechnik (ETIT)
Institut Institut für Prozessdatenverarbeitung und Elektronik (IPE)
Prüfungsdatum 19.12.2019
Referent/Betreuer Prof. M. Weber
Schlagwörter optical data transmission, particle physics, silicon photonics, photonic components, wavelength-division multiplexing, fiber-to-chip coupling
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