BEGIN:VCALENDAR VERSION:2.0 PRODID:-//DTU.dk//NONSGML DTU.dk//EN CALSCALE:GREGORIAN BEGIN:VEVENT DTSTART:20190606T113000Z DTEND:20190606T143000Z SUMMARY:PhD Defence by Erik Stassen DESCRIPTION:
Title: Nonlinear integrated photonics
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Supervisors
\nPrincipal supervisor: Kresten Yvind
\nCo-supervisor: Minhao Pu
\nAssoc. Prof. Michael Galili
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Evaluation Board
\nAssoc. Prof. Lars Hagedorn, DTU Fotonik, Denmark
\nAssoc. Prof. Bart Kuyken, Ghent Universitet, Belgium
\nCorrado Sciancalepore, CEA LETI, France
Master of the Ceremony
\nProfessor Leif Katsuo Oxenløwe
Abstract
\nThis thesis focuses on the development and improvement of nonlinear integrated photonics platforms for use in high-capacity telecommunications.
The first part is about gallium nitride-on-sapphire integrated devices. The development of the platform and fabrication of the devices is described in detail and the results of both linear and nonlinear characterization is shown. Record-high (platform-specific) quality factors are demonstrated for the microring resonators as well as record high effective nonlinearity (again platform-specific) for the waveguides. The intrinsic material nonlinearity at telecom wavelengths is also extracted.
\nThe second part concerns the aluminum gallium arsenide-on-insulator platform. A couple of specific attempts of improving the platform are described including atomic force microscopy of the sidewalls and surface passivation and the results of these efforts are presented.
\nRecord-high data rate wavelength conversion (40 Gbit/s) using an integrated aluminum gallium arsenide-on-insulator microring resonator is also shown. The low power limit for successful conversion of a 10 Gbit/s signal is also tested.
\nFinally, the result of broadening of an electro-optic modulated comb in an aluminum gallium arsenide-on-insulator waveguide is shown.
X-ALT-DESC;FMTTYPE=text/html:Title: Nonlinear integrated photonics
\n\n
Supervisors
\nPrincipal supervisor: Kresten Yvind
\nCo-supervisor: Minhao Pu
\nAssoc. Prof. Michael Galili
\n
\n
Evaluation Board
\nAssoc. Prof. Lars Hagedorn, DTU Fotonik, Denmark
\nAssoc. Prof. Bart Kuyken, Ghent Universitet, Belgium
\nCorrado Sciancalepore, CEA LETI, France
Master of the Ceremony
\nProfessor Leif Katsuo Oxenløwe
Abstract
\nThis thesis focuses on the development and improvement of nonlinear integrated photonics platforms for use in high-capacity telecommunications.
The first part is about gallium nitride-on-sapphire integrated devices. The development of the platform and fabrication of the devices is described in detail and the results of both linear and nonlinear characterization is shown. Record-high (platform-specific) quality factors are demonstrated for the microring resonators as well as record high effective nonlinearity (again platform-specific) for the waveguides. The intrinsic material nonlinearity at telecom wavelengths is also extracted.
\nThe second part concerns the aluminum gallium arsenide-on-insulator platform. A couple of specific attempts of improving the platform are described including atomic force microscopy of the sidewalls and surface passivation and the results of these efforts are presented.
\nRecord-high data rate wavelength conversion (40 Gbit/s) using an integrated aluminum gallium arsenide-on-insulator microring resonator is also shown. The low power limit for successful conversion of a 10 Gbit/s signal is also tested.
\nFinally, the result of broadening of an electro-optic modulated comb in an aluminum gallium arsenide-on-insulator waveguide is shown.
URL:https://www.fotonik.dtu.dk/kalender/2019/06/phd-defence-by-erik-stassen DTSTAMP:20240328T110000Z UID:{D0ADD5B8-B626-4AA7-8F14-73B3CF1FA0A2}-20190606T113000Z-20190606T113000Z LOCATION: Lyngby Campus, Building 340, Room 15a END:VEVENT END:VCALENDAR