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Emulation and By-Emitter Degradation Analysis of High Power Lasers

Christian Kwaku Amuzuvi

ISBN 10: 3659370355 / ISBN 13: 9783659370359
Published by LAP LAMBERT Academic Publishing, 2013
Condition: Good Soft cover
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Bibliographic Details

Title: Emulation and By-Emitter Degradation ...

Publisher: LAP LAMBERT Academic Publishing

Publication Date: 2013

Binding: Paperback

Book Condition: Good

About this title


The characterisation, emulation and by-emitter degradation analysis of two types of high power semiconductor laser diodes are presented in this work. An attempt is made using an accurate laser simulator called Speclase to learn more about the degradation of high power semiconductor laser diodes. Speclase being a single emitter simulation tool was transformed to model a bar i.e. multiple emitters, which we have named Barlase. The concept of Barlase was based on the fact that a bar is a monolithic block of multiple emitters connected in parallel with each other with a common voltage connected across them. The tool is designed to examine and emulate the degradation processes at both the laser bar and individual emitter levels of operation. Emitters are known to degrade faster within a bar than for identical single emitters due to a combination of packaging-induced strain and current competition. The bar emulation model was enhanced by including a global thermal solver to model the thermal crosstalk between emitters but the frown shaped temperature profile was minimal. This work is still at a very early stage and therefore, further work is needed to achieve better results.

About the Author:

Dr Christian K. Amuzuvi was born at Asamankese in the Eastern Region of Ghana. He is lecturer at the Electrical and Electronic Engineering Department of the University of Mines and Technology, Tarkwa in Ghana. He heads the department and lectures in various courses in the department. He is a graduate member of the Ghana Institution of Engineers.

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