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Proceedings Paper

Monolithic polarization control of multimode VCSELs by a dielectric surface grating
Author(s): Johannes Michael Ostermann; Pierluigi Debernardi; Christof Jalics; Andrea Kroner; Martin Feneberg; Michael C. Riedl; Rainer Michalzik
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Paper Abstract

Based on design guidelines from a three-dimensional, fully vectorial model, we have fabricated vertical-cavity surface-emitting lasers (VCSELs) with a monolithically integrated dielectric surface grating for polarization control. For VCSELs with emission wavelengths of 850 and 980 nm we have achieved orthogonal polarization suppression ratios (OPSRs) above 15 dB for all modes up to thermal rollover, which very well agrees with theory. It is shown both theoretically and experimentally that the grating has no influence on the emission far-field. The surface grating has also been combined with a surface relief to stabilize the polarization and to increase the fundamental mode output power at the same time.

Paper Details

Date Published: 16 June 2004
PDF: 12 pages
Proc. SPIE 5364, Vertical-Cavity Surface-Emitting Lasers VIII, (16 June 2004); doi: 10.1117/12.528237
Show Author Affiliations
Johannes Michael Ostermann, Univ. of Ulm (Germany)
Pierluigi Debernardi, IEIIT-CNR (Italy)
Christof Jalics, Univ. of Ulm (Germany)
Andrea Kroner, Univ. of Ulm (Germany)
Martin Feneberg, Univ. of Ulm (Germany)
Michael C. Riedl, Univ. of Ulm (Germany)
Rainer Michalzik, Univ. of Ulm (Germany)

Published in SPIE Proceedings Vol. 5364:
Vertical-Cavity Surface-Emitting Lasers VIII
Chun Lei; Kent D. Choquette; Sean P. Kilcoyne, Editor(s)

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