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Coherent coupling of two-dimensional arrays of defect cavities in photonic crystal vertical cavity surface-emitting lasers
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10.1063/1.1929074
/content/aip/journal/apl/86/20/10.1063/1.1929074
http://aip.metastore.ingenta.com/content/aip/journal/apl/86/20/10.1063/1.1929074
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

Examples of the hole patterns etched to create 2D arrays of defect cavities within PhC VCSELs. The lattice constant is 4.0 μm, and the diameter of each of the coupling region holes is (a) 2.8 μm, (b) 1.2 μm, and (c) 0.4 μm.

Image of FIG. 2.
FIG. 2.

(a) Light—current characteristic for a device fabricated using the pattern shown in Fig. 1(b). Inset is the near-field image of the device operating just above threshold as a 2D coherently coupled PhC VCSEL.

Image of FIG. 3.
FIG. 3.

Spectral characteristics for the device of Fig. 2.

Image of FIG. 4.
FIG. 4.

(a)–(c) Far-field images (to scale relative to each other) taken just above threshold from the PhC VCSELs fabricated using the patterns shown in Figs. 1(a)–1(c), respectively. Both (a) and (c) are examples of uncoupled devices with far fields indicative of the superposition of the Gaussian-type beams from each of the operating defect cavities, (b) is indicative of out-of-phase coherent coupling, and is taken from the device of Fig. 2. (d) Simulation of the far-field radiation pattern for the device of Fig. 2, operating out-of-phase coherently coupled.

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/content/aip/journal/apl/86/20/10.1063/1.1929074
2005-05-10
2014-04-24
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Coherent coupling of two-dimensional arrays of defect cavities in photonic crystal vertical cavity surface-emitting lasers
http://aip.metastore.ingenta.com/content/aip/journal/apl/86/20/10.1063/1.1929074
10.1063/1.1929074
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