Semiconductor lasers, tseem hu ua laser diodes, yog cov lasers uas siv cov khoom siv semiconductor ua cov ntaub ntawv ua haujlwm. Vim yog qhov sib txawv ntawm cov khoom qauv, cov txheej txheem tshwj xeeb ntawm laser tiam yog tshwj xeeb. Cov tshuaj yeeb dej caw feem ntau suav nrog gallium arsenide (GaAs), cadmium sulfide (CdS), indium phosphide (InP), zinc sulfide (ZnS), thiab lwm yam Muaj peb hom kev zam: kev txhaj tshuaj hluav taws xob, hluav taws xob nqaj excitation thiab lub twj tso kua mis kho qhov muag. Lub tshuab hluav taws xob semiconductor muaj peev xwm raug faib ua homojunction, ib qho kev sib txig sib luag, ob chav ua ntu thiab lwm yam. Lub homojunction laser thiab ib qho heterojunction laser feem ntau yog cov cuab yeej pulse ntawm chav sov thaum lub ob chav heterojunction laser tuaj yeem ua haujlwm tsis tu ncua ntawm chav sov.
