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Single-mode vertical-cavity surface-emitting laser with ring-shaped light-emitting aperture
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10.1063/1.1997282
/content/aip/journal/apl/87/3/10.1063/1.1997282
http://aip.metastore.ingenta.com/content/aip/journal/apl/87/3/10.1063/1.1997282

Figures

Image of FIG. 1.
FIG. 1.

(a) Top views of devices A and B; (b) cross-sectional view of device B. Device A is a conventional broad-area VCSEL and device B is a VCSEL with a ring-shaped light-emitting aperture. The shaded regions indicate Zn-diffused areas.

Image of FIG. 2.
FIG. 2.

The characteristics of the optical output power vs biasing current of devices A and B. The insets show the emission spectra of devices A and B under an injected current of . The units of the two adjacent grids of the and axis in the inset are about and , respectively. The wavelengths of the main peaks of devices A and B are 849.31 and , respectively. The wavelength resolution is about .

Image of FIG. 3.
FIG. 3.

The measured far-field patterns in the direction of (a) device A and (b) device B at different current levels. Square: ; circle: ; triangle: .

Tables

Generic image for table
Table I.

The measured divergence angles of devices A and B under different levels of injected current. The values in the “Average” column were calculated by averaging the measured divergence angles in the and directions.

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/content/aip/journal/apl/87/3/10.1063/1.1997282
2005-07-14
2014-04-18
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Single-mode vertical-cavity surface-emitting laser with ring-shaped light-emitting aperture
http://aip.metastore.ingenta.com/content/aip/journal/apl/87/3/10.1063/1.1997282
10.1063/1.1997282
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