Single transverse mode selectively oxidized vertical cavity lasers

Kent D. Choquette, Kent M. Geib, Ronald D. Briggs, Andy A. Allerman, Jana Jo Hindi

Research output: Contribution to journalConference article

Abstract

Vertical cavity surface emitting lasers (VCSELs) which operate in multiple transverse optical modes have been rapidly adopted into present data communication applications which rely on multi-mode optical fiber. However, operation only in the fundamental mode is required for free space interconnects and numerous other emerging VCSEL applications. Two device design strategies for obtaining single mode lasing in VCSELs based on mode selective loss or mode selective gain are reviewed and compared. Mode discrimination is attained with the use of a thick tapered oxide aperture positioned at a longitudinal field null. Mode selective gain is achieved by defining a gain aperture within the VCSEL active region to preferentially support the fundamental mode. VCSELs which exhibit greater than 3 mW of single mode output power at 850 nm with mode suppression ratio greater than 30 dB are reported.

Original languageEnglish (US)
Pages (from-to)230-233
Number of pages4
JournalProceedings of SPIE - The International Society for Optical Engineering
Volume3946
StatePublished - Jan 1 2000
Externally publishedYes
EventVertical-Cavity Surface-Emitting Lasers IV - San Jose, CA, USA
Duration: Jan 26 2000Jan 28 2000

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

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