We report high-power single-higher-order transverse mode emission of a large-area oxideconfined rectangular-shaped VCSEL with a multi-spot shallow surface relief. Both a recordhigh output power of 12mW and a record-low differential series resistance of 18 ohms are achieved. Stable single-higher-order transverse mode emission with a side-mode suppression ratio exceeding 35 dB is maintained up to...

A dual stator winding squirrel-cage induction motor (DSWIM) is a brushless single-frame induction motor that contains a stator with two isolated three-phase windings wound with dissimilar numbers of poles. Each stator winding is fed by an independent three-phase inverter. The appropriate efficiency of this motor is obtained when the ratio of two frequencies feeding the machine is equal to the r...

The authors show the importance of achieving an acceptable level of output side mode suppression ratio, when generating pulses using the self seeded gain switched technique. Experiments carried out on such pulses exhibiting poor side-mode-suppressionratios that are subsequently filtered to improve the latter, demonstrate that they possess an associated level of noise. This buildup of noise with...