Τομέας Θεωρητικής Πληροφορικής
Library of the School of Science

2015-09-03

2015

Κανάκης Παναγιώτης

Θωμάς Σφηκόπουλος, Δημήτριος Συβρίδης, Γεώργιος Βερώνης

Νανοφωτονικές διατάξεις αργού φωτός με εφαρμογή στις τηλεπικοινωνίες

Greek

Nanophotonic slow light structures for telecommunication applications

In this thesis, the delay performance of slow light optical pulses inside PCWs
is considered in the linear and nonlinear propagation regime from both a
theoretical and an application point of view. The storage capacity of slow
light PCWs is maximized using a systematic procedure based on the optimization
of various parameters of the structure.
Moreover, approximate analytical expressions for the estimation of the
degenerate four-wave mixing (FWM) conversion efficiency in slow-light PCWs are
presented. The derived formulas incorporate the different effective modal areas
and the frequency-dependent linear and nonlinear parameters of the pump,
signal, and idler waves.
We discuss the optimization of PCWs for FWM applications, taking into account
linear loss and free-carrier effects. Suitable figures of merit are introduced
in order to guide us through the choice of practical, high-efficiency designs
requiring relatively low pump power and small waveguide length.
Promising waveguide designs are identified, altering some structural
parameters. These designs are identified using an optimization process taking
into account sophisticated figure-of merits that depend on the pump bandwidth
and the signal/pump tunability. We also present alternative designs that are
less efficient but have smaller power requirements and are far more compact.

Photonic crystal waveguides, Slow light, Four wave mixing, Soliton, Delay lines

Yes

21-22

Yes

247

179

https://pergamos.lib.uoa.gr/uoa/dl/object/1309214/file.pdf

https://pergamos.lib.uoa.gr/uoa/dl/object/1309214