Electrically steerable lasers using wide-aperture VCSELs

M. I. Cohen, A. A. Allerman, K. D. Choquette, C. Jagadish

Research output: Contribution to journalArticlepeer-review

Abstract

A wide-aperture vertical-cavity surface-emitting laser has been fabricated so as to enhance the transverse mode selection. It was found that the far field emission can be made to exhibit two distinct steerable beams. The laser beams may be steered from 30° away from the normal right up to normal emission by varying the driving current. The steering effect is a thermal effect as confirmed by transient waveform analysis. A two-channel switch was built with switching time between channels of 10 μs and crosstalk of greater than 18 dB.

Original languageEnglish (US)
Pages (from-to)544-546
Number of pages3
JournalIEEE Photonics Technology Letters
Volume13
Issue number6
DOIs
StatePublished - Jun 2001
Externally publishedYes

Keywords

  • Beam steering
  • Free space optical interconnect
  • Vertical-cavity surface-emitting laser

ASJC Scopus subject areas

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

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