Tesi etd-08192020-131648
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Tipo di tesi
Master di Primo Livello
Autore
AREAYA, BRHANU KAHSAY
URN
etd-08192020-131648
Titolo
Modeling and characterization of InP based Spot Size Converters
Struttura
Istituto di Tecnologie della Comunicazione, dell'Informazione e della Percezione
Corso di studi
Corsi Alta Formazione - PHOTONIC INTEGRATED CIRCUITS, SENSORS AND NETWORKS (PIXNET)
Commissione
relatore Dott. CALABRETTA, NICOLA
Relatore Prof. CASTOLDI, PIERO
Relatore Avv. PRIFTI, KRISTIF
Relatore Prof. CASTOLDI, PIERO
Relatore Avv. PRIFTI, KRISTIF
Parole chiave
- Adiabatic coupling
- coupling loss
- spot size converter
Data inizio appello
08/09/2020;
Disponibilità
completa
Riassunto analitico
Spot size converters have a crucial role in integrated optics. This project is aimed to characterize and propose a new design of the spot size converters. An experimental assessment of a set of spot-size converters, where the coupling loss, polarization-dependent loss, and the transmission characteristics were analyzed, is performed, and a coupling loss as low as 1 dB was obtained. Motivated by the experimental results as an initial guess, two modeling approaches are proposed: (a) when the fiber matched waveguide is defined by thick lightly doped InP layer and highly doped InP substrate, (b) when the fiber matched waveguide is defined by diluted InGaAsP/InP interleaved layers. The study and optimization of respective parameters were performed, and the second approach relatively gives better coupling with a coupling loss of 0.4 dB with a taper length of 2.2 μm.
File
| Nome file | Dimensione |
|---|---|
| BK_senza_firma.pdf | 2.45 Mb |
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