Publications

Effect of tensile strain/well-width combination on the measured gain-radiative current characteristics of 635 nm laser diodes

Lewis, G.M.; Smowton, P.M.; Blood, P.; Chow, Weng W.

Effect of tensile strain/well-width combination on the measured gain-radiative current characteristics of 635 nm laser diodes was studied. Polarization sensitive measurements in real units of gain and spontaneous emission of GaInP lasers allowed the isolate the effects. It was found that varying tensile strain and well width for 635 nm operation had no effect on transverse magnetic polarized recombination at fixed gain. It was also found that the total transparency current decreased from 116 to 83 A cm-2 due to increased separation of light and heavy hole bands.