Polarization pinning of a VCSEL array

K. Tastavridis, K. A. Williams, L. J. Sargent, P. J. Heard, J. M. Rorison, R. V. Penty, I. H. White

Research output: Contribution to journalConference articlepeer-review

4 Citations (SciVal)


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.

Original languageEnglish
Pages (from-to)78-85
Number of pages8
JournalProceedings of SPIE - The International Society for Optical Engineering
Publication statusPublished - 1 Jan 2000
EventVertical-Cavity Surface-Emitting Lasers IV - San Jose, CA, USA
Duration: 26 Jan 200028 Jan 2000

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Condensed Matter Physics


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