Low threshold high-power room-temperature continuous-wave operation diode laser emitting at 2.26 μm

  • Michel Garcia*
  • , A. Salhi
  • , A. Pérona
  • , Y. Rouillard
  • , C. Sirtori
  • , X. Marcadet
  • , C. Alibert
  • *Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

Diode lasers emitting at 2.26 μm, based on the InGaAsSb-AlGaAsSb materials system, are reported. These devices exhibit high internal quantum efficiency of 78% and low threshold current density of 184.5 A/cm2 for a 2-mm-long cavity. Output power up to 700 mW (≈550 mW) has been obtained at 280 K (300 K) in continuous-wave operation with 100 μm × 1 mm lasers. These devices have been coated with an antireflection on the output facet and are mounted epilayer down on a copper block. The working temperature was maintained by a thermoelectric Peltier cooling element.

Original languageEnglish
Pages (from-to)1253-1255
Number of pages3
JournalIEEE Photonics Technology Letters
Volume16
Issue number5
DOIs
Publication statusPublished - May 2004
Externally publishedYes

Keywords

  • Coatings
  • Continuous-wave (CW) lasers
  • Fabrication
  • Ohmic contacts
  • Semiconductor lasers

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