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Proceedings Paper

Continuous-wave operation of phase-coupled vertical-cavity surface-emitting laser arrays
Author(s): Fabrice Monti di Sopra; Marcel Brunner; Rainer Hoevel; Michael Moser; Eli E. Kapon
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Paper Abstract

Coupled arrays of vertical-cavity surface-emitting lasers were realized by patterning the reflectivity of the top-distributed Bragg reflector using a phase-matching layer and a metal grid. For improved current injection and better heat dissipation the devices were selectively oxidized. Continuous-wave room-temperature operation of these anays has been achieved at 960 urn. Polarization resolved measurements revealed a stable behavior without any polarization flips in the fundamental lasingmode regime. Spectrally resolved measurements of the near- and far-field showed an abrupt transition from the fundamental super-mode with a TEM00-shaped near-field in every individual pixel with a beam divergence of 5.5°in both arraydirections to a TEM01-like super-mode with 5.5° beam divergence in one direction and 1 1° in the other direction. Measurements with high angular resolution showed full-width at half-maximum of the far-field intensity lobes as small as 0.89° for a lOxlO array.

Paper Details

Date Published: 4 May 2001
PDF: 9 pages
Proc. SPIE 4286, Vertical-Cavity Surface-Emitting Lasers V, (4 May 2001); doi: 10.1117/12.424798
Show Author Affiliations
Fabrice Monti di Sopra, Avalon Photonics Ltd. (Switzerland)
Marcel Brunner, Avalon Photonics Ltd. (Switzerland)
Rainer Hoevel, Avalon Photonics Ltd. (Switzerland)
Michael Moser, Avalon Photonics Ltd. (Switzerland)
Eli E. Kapon, Swiss Federal Institute of Technology/Lausanne (Switzerland)

Published in SPIE Proceedings Vol. 4286:
Vertical-Cavity Surface-Emitting Lasers V
Kent D. Choquette; Chun Lei, Editor(s)

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