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Self-sustained pulsation in the oxide-confined vertical-cavity surface-emitting lasers based on submonolayer InGaAs quantum dots
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10.1063/1.2784937
/content/aip/journal/apl/91/12/10.1063/1.2784937
http://aip.metastore.ingenta.com/content/aip/journal/apl/91/12/10.1063/1.2784937
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

Schematic cross section of oxide-confined SML InGaAs QD VCSEL.

Image of FIG. 2.
FIG. 2.

cw room temperature (RT) and characteristics of single-mode SML InGaAs QD VCSEL with oxide tapered aperture and 17-pair top DBR. The inset shows the lasing spectra at three different pumping current values: 1 (1), 2 (2), and (3).

Image of FIG. 3.
FIG. 3.

(a) Characteristics of SML InGaAs QD VCSEL with oxide tapered aperture diameter of : cw RT , , and characteristics. (b) Emission spectra taken at five different pumping current values: 1.6 (1), 1.9 (2), 2.2 (3), 2.6 (4), and (5). (c) Self-pulsation at two different currents and dependence of the self-pulsation frequency on pumping current.

Image of FIG. 4.
FIG. 4.

Calculated effective index, current density, and transverse optical mode profiles as functions of radial distance for tapered aperture. The current density profile is calculated for a carrier lateral diffusion length of . The inset shows the scanning electron microscopy image of the oxide tapered aperture.

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/content/aip/journal/apl/91/12/10.1063/1.2784937
2007-09-18
2014-04-23
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Self-sustained pulsation in the oxide-confined vertical-cavity surface-emitting lasers based on submonolayer InGaAs quantum dots
http://aip.metastore.ingenta.com/content/aip/journal/apl/91/12/10.1063/1.2784937
10.1063/1.2784937
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