Contact Geometrical Study for Top Emitting 980 nm InGaAs/GaAsP Vertical-Cavity Surface Emitting Lasers
ARO-THE SCIENTIFIC JOURNAL OF KOYA UNIVERSITY
View Publication Info| Field | Value | |
| Title |
Contact Geometrical Study for Top Emitting 980 nm InGaAs/GaAsP Vertical-Cavity Surface Emitting Lasers
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| Creator |
Chaqmaqchee, Faten A.
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| Subject |
Vertical-cavity surface emitting laser
AlGaAs Distributed Bragg reflectors InGaAs/GaAsP quantum wells Static characterization |
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| Description |
Geometrical contacts of a double mesa structure with 16 rows ×15 columns arrays of top emitting GaAs based 980 nm vertical cavity surface emitting lasers (VCSELs) are fabricated and characterized. In this paper, 5 strained In0.22Ga0.78As/Ga0.9AsP0.1 quantum wells (QWs) within λ/2 thick cavity have been employed. The top and the bottom epitaxially grown mirrors are based on the linear graded Al0.9Ga0.1As/GaAs distributed Bragg reflectors (DBRs) with 20.5 and 37 periods, respectively. Static parameters including threshold currents, rollover currents, maximum optical output power and wall-plug efficiency are extracted from light out power-current-voltage (LIV) of VCSELs with fixed oxide aperture diameter of ∅~ 6 μm and various mesa2 diameters. In addition, spectral emission for 980 nm VCSELs of oxide aperture between ∅~ 6 and 19 μm and with fixed ∅~ 6 μm and different bias currents are analyzed. The highest optical output power of around 33 dBm is observed at bias current of 0.8 mA for short−reach optical interconnect applications.
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| Publisher |
Koya University
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| Date |
2021-12-26
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| Type |
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion Peer-reviewed article text |
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| Format |
application/pdf
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| Identifier |
http://aro.koyauniversity.org/index.php/aro/article/view/845
10.14500/aro.10845 |
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| Source |
ARO-THE SCIENTIFIC JOURNAL OF KOYA UNIVERSITY; Vol. 9 No. 2 (2021): Issue Seventeen; 112-116
2307-549X 2410-9355 |
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| Language |
eng
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| Relation |
http://aro.koyauniversity.org/index.php/aro/article/view/845/243
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| Rights |
Copyright (c) 2021 Faten A. Chaqmaqchee
https://creativecommons.org/licenses/by-nc-sa/4.0 |
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