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Permanent link (DOI): https://doi.org/10.7939/R39P6T

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Towards an erbium-doped waveguide amplifier sensitized by silicon nanoclusters Open Access

Descriptions

Other title
Subject/Keyword
sensitizers, silicon nanoclusters, optical waveguide amplifiers
Type of item
Thesis
Degree grantor
University of Alberta
Author or creator
Lenz, Florian Christoph
Supervisor and department
DeCorby, Raymond (Electrical and Computer Engineering)
Meldrum, Al (Physics)
Examining committee member and department
McMullin, James (Electrical and Computer Engineering)
Veinot, Jonathan (Chemistry)
Department
Department of Electrical and Computer Engineering
Specialization

Date accepted
2009-07-10T16:22:59Z
Graduation date
2009-11
Degree
Master of Science
Degree level
Master's
Abstract
Amorphous and crystalline silicon nanocomposites have been shown to act as effective “sensitizers” for erbium ions. In the present work, a series of erbium-doped (0.2 at.%) SiOx:Er films (x = 1 - 1.8) were synthesized by physical vapor deposition and subsequently annealed at temperatures ranging from 400°C to 1100°C to induce phase separation and cluster growth. Silicon nanocluster (Si-NC) and Er3+ photoluminescence intensity spectra and dynamics were investigated as a function of SiOx composition, annealing temperature, pump wavelength and power, and specimen temperature in order to determine characteristic cross-sections and to map the efficiency of the energy transfer process between Si-NCs and Er3+ ions. Additionally, two types of optical waveguides based on SiOx:Er materials were fabricated using conventional CMOS compatible microfabrication processes. Waveguide propagation losses as well as signal absorption and enhancement were investigated under pumping conditions to evaluate the use of SiOx:Er materials as amplifying media.
Language
English
DOI
doi:10.7939/R39P6T
Rights
License granted by Florian Lenz (flenz@phys.ualberta.ca) on 2009-07-09T19:14:06Z (GMT): Permission is hereby granted to the University of Alberta Libraries to reproduce single copies of this thesis and to lend or sell such copies for private, scholarly or scientific research purposes only. Where the thesis is converted to, or otherwise made available in digital form, the University of Alberta will advise potential users of the thesis of the above terms. The author reserves all other publication and other rights in association with the copyright in the thesis, and except as herein provided, neither the thesis nor any substantial portion thereof may be printed or otherwise reproduced in any material form whatsoever without the author's prior written permission.
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