Two-step MOVPE, in-situ etching and buried implantation: applications to the realization of GaAs laser diodes

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Publisher : Cuvillier Verlag
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Language : EN, FR, GB
ISBN 10 : 9783736963979
Pages : 250 pages
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Download or read book Two-step MOVPE, in-situ etching and buried implantation: applications to the realization of GaAs laser diodes written by Pietro della Casa and published by Cuvillier Verlag. This book was released on 2021-03-25 with total page 250 pages. Available in PDF, EPUB and Kindle. Book excerpt: This work is about two-step epitaxial growth using metalorganic vapor-phase epitaxy (MOVPE) for the realization of edge-emitting near-infrared laser diodes. The fabricated gallium arsenide-based devices fall into two categories: high-power lasers (watt range, multimodal) and tunable lasers (milliwatt range, monomodal). Common to both cases is that surface contamination – particularly that due to oxygen – needs to be removed before regrowth. Thus, in-situ etching with carbon tetrabromide (CBr4) is first studied. The experimental results include kinetic data, the effects of different etching conditions as well as substrate characteristics, and the effectiveness in reducing surface contamination. These investigations pave the way to devices based on 2-step epitaxy combined with in-situ etching. Correspondingly, thermally-tuned SG-DBR lasers operating around 975 nm have been successfully realized, obtaining a tuning range of 21 nm. In addition, the possibility of using electronic tuning in similar devices has been explored. High-power broad-area lasers have also been realized, using two-step epitaxy combined with ex-situ and in-situ etching, to create a buried, shallow “mesa” containing the active zone. This approach allows introducing lateral electrical and optical confinement, and – simultaneously – non-absorbing mirrors at the laser facets. Additionally, a different strategy to create a buried current aperture is presented, which is based on ion implantation followed by epitaxial regrowth. This enables to improve device performance and simultaneously introduce non-absorbing mirrors at the facets with correspondingly increased reliability.

Physics Briefs

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ISBN 10 : UOM:39015027732158
Pages : pages
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Download or read book Physics Briefs written by and published by . This book was released on 1991 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Chemical Abstracts

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ISBN 10 : UOM:39015057317482
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Summary Book Review Chemical Abstracts :

Download or read book Chemical Abstracts written by and published by . This book was released on 2002 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Electrical & Electronics Abstracts

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ISBN 10 : OSU:32435059589259
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Summary Book Review Electrical & Electronics Abstracts :

Download or read book Electrical & Electronics Abstracts written by and published by . This book was released on 1997 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

International Aerospace Abstracts

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ISBN 10 : STANFORD:36105021106690
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Summary Book Review International Aerospace Abstracts :

Download or read book International Aerospace Abstracts written by and published by . This book was released on 1998 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Original Scientific Papers Wissenschaftliche Originalarbeiten

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Publisher : Springer-Verlag
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ISBN 10 : 9783642616594
Pages : 634 pages
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Summary Book Review Original Scientific Papers Wissenschaftliche Originalarbeiten :

Download or read book Original Scientific Papers Wissenschaftliche Originalarbeiten written by Walter Blum and published by Springer-Verlag. This book was released on 2013-03-07 with total page 634 pages. Available in PDF, EPUB and Kindle. Book excerpt: