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Proceedings Paper

Polarization pinning of a VCSEL array
Author(s): Kostas Tastavridis; Kevin A. Williams; Laurence J. Sargent; Peter J. Heard; Judy M. Rorison; Richard V. Penty; Ian H. White
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Paper Abstract

Polarization control is reported for a 2-D independently addressable VCSEL array. Polarization pinning for emitters on the same die at several orientations is achieved by etching trenches close to the contact metallization of each emitter in the array using focused ion beam etching. Polarization extinction ratios in excess of 50 are achieved over a wide range of orientations and bias currents. No significant effects are observed on threshold current subsequent to the etching of polarization pinning trenches.

Paper Details

Date Published: 1 May 2000
PDF: 8 pages
Proc. SPIE 3946, Vertical-Cavity Surface-Emitting Lasers IV, (1 May 2000); doi: 10.1117/12.384363
Show Author Affiliations
Kostas Tastavridis, Univ. of Bristol (United Kingdom)
Kevin A. Williams, Univ. of Bristol (United Kingdom)
Laurence J. Sargent, Univ. of Bristol (United Kingdom)
Peter J. Heard, Univ. of Bristol (United Kingdom)
Judy M. Rorison, Univ. of Bristol (United Kingdom)
Richard V. Penty, Univ. of Bristol (United Kingdom)
Ian H. White, Univ. of Bristol (United Kingdom)


Published in SPIE Proceedings Vol. 3946:
Vertical-Cavity Surface-Emitting Lasers IV
Kent D. Choquette; Chun Lei, Editor(s)

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