OPTIMISATION OF Sn DOPING IN GaAls/ GaAs DH LASERS GROWN BY MBE J.F. Stagg, P.J. Hulyer, C.T. Foxon et D. Ashenford J. Phys. Colloques, 43 C5 (1982) C5-377-C5-382 DOI: 10.1051/jphyscol:1982542