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Nanoscale effects on the thermal and mechanical properties of AlGaAs/GaAs quantum well laser diodes: influence on the catastrophic optical damage

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Academic year: 2020

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Figure 2. CL image of AlGaAs/GaAs laser showing the DLDs guided along the injection channels
TABLE  I.  Main  parameters  of  the  materials  used  for  the  computations:  α,  thermal  expansion  coefficient; C p , heat capacity; , thermal conductivity; C 11 , C 12  and C 44 , elastic constants; ν, Poisson  ratio; and E, Young’s modulus
Figure 3. Maximum temperature in the QW for  eff / bulk  = 0.25 and an 8 MW/cm 2  power density as a  function of the lateral extension of the heat source
Figure 5. Maximum temperature in the laser diode as a function of the dissipated power density in the  QW for a range of  eff / bulk  ratios
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