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GaSb-based diode lasers with asymmetric separate confinement heterostructure

  • Rui Liang
  • , Takashi Hosoda
  • , Gela Kipshidze
  • , Leon Shterengas
  • , Gregory Belenky

Research output: Contribution to journalArticlepeer-review

8 Scopus citations

Abstract

A design for GaSb-based type-I quantum well diode lasers with an AlGaInAsSb/GaInAsSb active region, GaSb and AlGaAsSb separate confinement layers, and an AlSb/InAs hole stopper is proposed. The suppression of carrier recombination outside of the active region leads to improved laser efficiency and temperature stability. At a heatsink temperature of 17° C, the 2-mm-long, 100-μ m-wide, anti-/high-reflection coated devices demonstrate threshold current densities of ∼350A cm2 and emit ∼ 220 mW of continuous wave output power at 3.15μ m.

Original languageEnglish
Article number6493390
Pages (from-to)925-928
Number of pages4
JournalIEEE Photonics Technology Letters
Volume25
Issue number10
DOIs
StatePublished - 2013

Keywords

  • Carrier stopper
  • GaSb-based
  • diode lasers
  • mid-infrared
  • separate confinement heterostructure
  • type-I quantum well (QW)

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