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  • Zhao, Huan, 1982-, et al. (författare)
  • Very Low Threshold Current Density 1.292 µm GaInNAs Triple Quantum Well Lasers
  • 2008
  • Ingår i: Electronics Letters. - 0013-5194. ; 44:7, s. 475-477
  • Tidskriftsartikel (refereegranskat)abstract
    • Very-low-threshold Ga0.62In0.38N 0.007As0.993/GaN0.011As0.989/GaAs triple quantum well (QW) lasers emitting at 1.29m are demonstrated. The laser structure was grown by molecular beam epitaxy after extensive optimisations of growth and in situ annealing conditions. As-cleaved broad-area lasers with a cavity length of 1mm under pulsed operation showed a record low-threshold current density of 400A/cm2 (∼130A/cm2/QW), a high differential efficiency of 0.32W/A/facet and a characteristic temperature of 94K in the temperature range 10 to 110°C. © The Institution of Engineering and Technology 2008.
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  • Wang, Shumin, 1963-, et al. (författare)
  • Growth of dilute nitrides and 1.3 μm edge emitting lasers on GaAs by MBE
  • 2011
  • Ingår i: Physica Status Solidi B - Basic Solid State Physics. - 0370-1972. ; 248:5, s. 1207-1211
  • Tidskriftsartikel (refereegranskat)abstract
    • In this paper, we report recent progresses on growth of dilute nitrides and 1.3 mu m lasers on GaAs using molecular beam epitaxy at Chalmers University of Technology, Sweden. Intense long wavelength light emission up to 1.71 mu m at room temperature has been achieved by using the N irradiation method and the low growth rate. It is also demonstrated that incorporation of N in relaxed InGaAs buffer grown on GaAs strongly enhances the optical quality of metamorphic InGaAs quantum wells. With the optimized growth conditions and the laser structures, we demonstrate 1.3 mu m GaInNAs edge emitting lasers on GaAs with state-of-the-art performances including a low threshold current density, a high-characteristic temperature, a 3 dB bandwidth of 17 GHz and uncooled operation at 10 Gbit/s up to 110 degrees C. The laser performances are comparable with the best reported data from the InGaAsP lasers on InP and is superior to the InAs quantum dot lasers on GaAs.
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