Slow-light photonic crystal devices for high-speed optical signal processing

192 Pages·2009·12.69 MB·English

by  Jan-Michael Brosi

Karlsruhe Series in Photonics & Communications, Vol. 4 Karlsruhe Series in Photonics & Communications, Vol. 4
Edited by Prof. J. Leuthold and Prof. W. Freude
Universität Karlsruhe (TH)
Institute of High-Frequency and Quantum Electronics (IHQ)
g
Germany n
i
s
Jan-Michael Brosi
s
e
c
Photonic crystals are nano-optical devices that have the potential to slow down o
r
P
the propagation of light. “Slow light” is not only useful for generating true time

l
delays, but is also good for enhancing nonlinear effects. With photonic crystals a
n Slow-Light Photonic Crystal
it is basically possible to tailor dispersion. Devices can be integrated in silicon- g
i
S
on-insulator photonic chips and could also be combined with electronics. For

l
a
fabrication, the well-established CMOS process is available. c Devices for High-Speed
i
t
p
O
This book discusses design, modeling, and the characterization of fabricated
Optical Signal Processing
d
slow-light photonic crystal waveguides, where applications aim for high-speed e
e
optical signal processing. Slow-light photonic crystal waveguides are fabrica- p
S
ted both at optical and microwave frequencies. Microwave model measure-
-
h
ments serve as a highly accurate reference, based on which various numerical g
i
H
methods for calculating photonic crystals are evaluated and compared. Guide-

r
lines are developed to obtain slow-light waveguides with broadband characte- o
f

ristics. Losses by fabrication imperfections are numerically determined and s
e
minimized. Nonlinearities are enhanced by a proper waveguide design and by c
i
v
additionally employing nonlinear organic materials. Three functional devices e
D
are proposed and studied: A tunable dispersion compensator, a tunable opti-

C
cal delay line, and a high-speed electro-optic modulator. Optical measure- P

ments confirm the designs. t
h
g
i
L
About the Author -
w
Jan-Michael Brosi was born in 1978 in Filderstadt, Germany. In 2002 he recei- o
l
S
ved the M.Sc. degree in Electrical Engineering from Georgia Institute of Tech-

nology, Atlanta, USA, and in 2008 the Dr.-Ing. (Ph.D.) degree from University of

Karlsruhe, Germany. His research is focused on modeling, processing and

characterization of photonic crystals and integrated optical devices. i
s
o
r
B

l
e
a
h
c
i
M
-
n
a
J
ISSN: 1865-1100
ISBN: 978-3-86644-313-6
www.uvka.de 4

Jan-Michael Brosi
Slow-Light Photonic Crystal Devices
for High-Speed Optical Signal Processing
Karlsruhe Series in Photonics & Communications, Vol. 4
Edited by Prof. J. Leuthold and Prof. W. Freude
Universität Karlsruhe (TH), Institute of High-Frequency and Quantum Electronics (IHQ),
Germany
Slow-Light Photonic Crystal
Devices for High-Speed
Optical Signal Processing
by
Jan-Michael Brosi
Dissertation, Universität Karlsruhe (TH)
Fakultät für Elektrotechnik und Informationstechnik, 2008
Impressum
Universitätsverlag Karlsruhe
c/o Universitätsbibliothek
Straße am Forum 2
D-76131 Karlsruhe
www.uvka.de
Dieses Werk ist unter folgender Creative Commons-Lizenz
lizenziert: http://creativecommons.org/licenses/by-nc-nd/2.0/de/
Universitätsverlag Karlsruhe 2009
Print on Demand
ISSN: 1865-1100
ISBN: 978-3-86644-313-6

Slow-Light Photonic Crystal Devices for
High-Speed Optical Signal Processing
ZurErlangungdesakademischenGradeseines
DOKTOR-INGENIEURS
vonderFakulta¨tfu¨r
ElektrotechnikundInformationstechnik
derUniversita¨tKarlsruhe(TH)
genehmigte
DISSERTATION
von
Jan-Michael Brosi, M. Sc.
geboreninFilderstadt
Tagdermu¨ndlichenPru¨fung: 18.Juli2008
Hauptreferent: Prof.Dr.-Ing.Dr.h.c.WolfgangFreude
Korreferenten: Prof.Dr.sc.nat.Ju¨rgLeuthold
Prof.Dr.rer.nat.UlrichLemmer