On-axis far-field emission from two-dimensional phase-locked vertical cavity surface-emitting laser arrays with an integrated phase-corrector

M. E. Warren, P. L. Gourley, G. R. Hadley, G. A. Vawter, T. M. Brennan, B. E. Hammons, K. L. Lear

Research output: Contribution to journalArticlepeer-review

77 Scopus citations

Abstract

We have fabricated large, two-dimensional (2D) arrays of optically pumped, phase-locked vertical cavity surface-emitting lasers that emit more than 50% of their light in a central on-axis lobe. The emission of the arrays was modified from the usual four-lobed far-field of 2D coupled arrays by incorporation of a binary phase-shift mask on the surface of the array. The array consists of Fabry-Perot resonators comprising GaAs/AlGaAs quantum wells surrounded by AlAs/AlGaAs quarterwave mirrors with a multiple order AlGaAs phase-delay layer on the top mirror stack. The phase-shift layer was etched away on alternating elements of the array. The resulting on-axis emission had an angular width of 2°for an array of approximately 100 elements.

Original languageEnglish (US)
Pages (from-to)1484-1486
Number of pages3
JournalApplied Physics Letters
Volume61
Issue number13
DOIs
StatePublished - 1992
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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