Low threshold room-temperature continuous-wave operation of 2.24-3.04 μm GaInAsSb/AlGaAsSb quantum-well lasers

C. Lin, M. Grau, O. Dier, M. C. Amann

Research output: Contribution to journalArticlepeer-review

159 Scopus citations

Abstract

The 3.04 μm extension of wavelength in GaInAsSb/AlGaSb double-quantum-well ridge waveguide diode lasers in continuous-wave operation, was investigated. From a laser with 2 mm cavity length, a threshold current density of 343 A/cm2 was recorded and 30 μm ridge width in pulsed-mode operation. From the multiple quantum lasers of wavelength 2.24 to 3.04 μm, the threshold current densities and characteristics temperatures were calculated. The results show that the threshold current density per quantum well increases strongly with 3.04 wavelength and increases to its three times with 2.24 μm device.

Original languageEnglish
Pages (from-to)5088-5090
Number of pages3
JournalApplied Physics Letters
Volume84
Issue number25
DOIs
StatePublished - 21 Jun 2004

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