One- and two-dimensional coherently coupled implant-defined vertical-cavity laser arrays

Ann C. Lehman, Kent D. Choquette

Research output: Contribution to journalArticlepeer-review

Abstract

Loss between elements of coherently coupled vertical-cavity surface-emitting laser (VCSEL) arrays typically causes out-of-phase operation with on-axis intensity nulls in the far-field. We show that in-phase evanescently coupled VCSEL arrays may be defined by proton implantation. An advantage for implanted in-phase coherently coupled VCSEL arrays is that this approach employs a simple and reliable fabrication process where the absence of loss between elements leads to in-phase coupling. We present data for 2, 3, and 4 element in-phase implant-defined coherently coupled VCSEL arrays.

Original languageEnglish (US)
Pages (from-to)1421-1423
Number of pages3
JournalIEEE Photonics Technology Letters
Volume19
Issue number19
DOIs
StatePublished - Oct 1 2007

Keywords

  • Coherent arrays
  • Vertical-cavity surface-emitting laser (VCSEL)

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Electrical and Electronic Engineering

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