CAFFA-THESIS-2020.pdf (2.51 MB)

Laser Diodes Power Scaling Techniques

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thesis
posted on 01.08.2020, 00:00 by Mattia Caffa
The limits that the development of single laser device (both semiconductor laser and fiber laser) has reached and hardly can overpass are discussed and an overview on the different techniques to combine multiple lasers into a single beam with greater power and quality is presented. Between them, for the promising results that have already been obtained and its importance in future research ,coherent combining techniques have been investigated in detail. To this purpose a MOPA system seeded with a fiber laser have been numerically simulated on Matlab and an active phase correction algorithm has been validated. In the last part of the thesis, the results of an experiment on spectral beam combining, another promising power scaling technique, are described. Wavelength locking using as feedback the 1st order of a blazed diffraction grating have been demonstrated with multiple diodes.

History

Advisor

Uslenghi, PiergiorgioPerrone, Guido

Chair

Uslenghi, Piergiorgio

Department

Electrical and Computer Engineering

Degree Grantor

University of Illinois at Chicago

Degree Level

Masters

Degree name

MS, Master of Science

Committee Member

E r r i c o l o , D a n i l o

Submitted date

August 2020

Thesis type

application/pdf

Language

en

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