Comparison of gamma and proton-induced radiation damage in long-wavelength VCSELs

Author

Van Uffelen, M. ; Mols, J. ; Goussarov, A. ; Neumeyr, C. ; Ortsiefer, M. ; Berghmans, F.

Author_Institution

Belgian Nucl. Res. Centre, SCK-CEN, Mol, Belgium

fYear

2007

fDate

10-14 Sept. 2007

Firstpage

1

Lastpage

4

Abstract

We studied long-wavelength vertical-cavity surface-emitting laser diodes (LW-VCSELs) emitting in the 1.4-1.7 mum range under gamma radiation up to 9 MGy and 36 MeV protons up to 10¹³p/cm², in order to compare the impact of both ionizing and displacement damage on their optical and electrical properties. The limited threshold shift and slope efficiency degradation of these state-of-the-art electrically-pumped laser diodes allow us to envisage data and sensor applications in various radiation environments.

Keywords

gamma-ray effects; proton effects; surface emitting lasers; displacement damage; gamma radiation; radiation damage; vertical-cavity surface-emitting laser diodes; Diode lasers; Fiber lasers; Indium phosphide; Optical receivers; Protons; Quantum dot lasers; Quantum dots; Quantum well lasers; Semiconductor lasers; Vertical cavity surface emitting lasers; Vertical-Cavity Surface-Emitting Lasers (VCSELs); gamma radiation; protons; slope efficiency; threshold current;

fLanguage

English

Publisher

ieee

Conference_Titel

Radiation and Its Effects on Components and Systems, 2007. RADECS 2007. 9th European Conference on

Conference_Location

Deauville

ISSN

0379-6566

Print_ISBN

978-1-4244-1704-9

Type

conf

DOI

10.1109/RADECS.2007.5205463

Filename

5205463