Full Title

Semiconductor lasers (superluminescent diodes H10H20/00) > Structure or shape of the active region; Materials used for the active region > comprising quantum well or superlattice structures, e.g. single quantum well [SQW] lasers, multiple quantum well [MQW] lasers or graded index separate confinement heterostructure [GRINSCH] lasers (H01S5/36 takes precedence)