3-5 μm lasers employing GaInSb/InAs superlattice active layers

Alan R. Kost, L. West, Richard H. Miles, Tom C. Hasenberg

Research output: Contribution to journalConference articlepeer-review

Abstract

We demonstrate midwave infrared diode lasers than span the 3-4 micrometers range. Laser active regions are multiple quantum well structures with GaInSb/InAs, type-II, broken gap superlattices for the wells and GaInAsSb for the barriers. The superlattice constituents and dimensions were tailored to reduce losses from Auger recombination. AlSb/InAs superlattices are used for both n-type and p-type laser cladding regions. A device with emission at 3.2 micrometers lased up to 255 K. We have achieved 75 mW per facet at 3.0 micrometers at an operating temperature of 140 K with an 85 microsecond(s) ec input current pulse. Device output appears to be limited by resistive heating. A four-layer, strain-balanced superlattice design offers greater laser efficiency.

Original languageEnglish (US)
Pages (from-to)321-329
Number of pages9
JournalProceedings of SPIE - The International Society for Optical Engineering
Volume3001
DOIs
StatePublished - 1997
Externally publishedYes
EventIn-Plane Semiconductor Lasers: from Ultraviolet to Midinfrared - San Jose, CA, United States
Duration: Feb 10 1997Feb 10 1997

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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