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Proceedings Paper

Grating-coupled surface emitters with built-in beam control
Author(s): Anders G. Larsson; Niklas Eriksson; Ming Li; Sigurgeir Kristjansson; Mats Hagberg
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Paper Abstract

A grating coupled surface emitting semiconductor laser consists of an in-plane laser with an integrated grating coupler that couples the light from the laser out of the waveguide and simultaneously shapes the emitted beam. Here we report on the progress towards a fully integrated grating coupled surface emitter. This includes: (1) grating outcouplers exhibiting more than 90% outcoupling efficiency through the use of optimized grating profiles and waveguide structures, (2) grating outcouplers possessing beam shaping capabilities through the use of computer generated waveguide holograms, and (3) grating based in-plane lasers producing wide and spatially coherent guided modes through the use of an unstable resonator design and mode selective feedback elements.

Paper Details

Date Published: 1 May 1997
PDF: 11 pages
Proc. SPIE 3004, Fabrication, Testing, and Reliability of Semiconductor Lasers II, (1 May 1997); doi: 10.1117/12.273835
Show Author Affiliations
Anders G. Larsson, Chalmers Univ. of Technology (Sweden)
Niklas Eriksson, Chalmers Univ. of Technology (Sweden)
Ming Li, Chalmers Univ. of Technology (Sweden)
Sigurgeir Kristjansson, Chalmers Univ. of Technology (Sweden)
Mats Hagberg, Chalmers Univ. of Technology (Sweden)

Published in SPIE Proceedings Vol. 3004:
Fabrication, Testing, and Reliability of Semiconductor Lasers II
Mahmoud Fallahi; S. C. Wang, Editor(s)

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