Ndị na-agafe agafe Q-switches ma ọ bụ saturable absorbers na-emepụta ọkụ ọkụ laser dị elu na-enweghị iji electro-optic Q-switches, si otú ahụ na-ebelata nha ngwugwu ma wepụ ọkụ eletrik dị elu.Co2+:MgAl2O4bụ ihe ọhụrụ dịtụ ọhụrụ maka ịgbanye Q-switching na lasers na-apụta site na 1.2 ruo 1.6μm, ọkachasị, maka nchekwa 1.54μm Er: laser glass, mana na-arụkwa ọrụ na 1.44μm na 1.34μm laser wavelengths.Spinel bụ kristal siri ike, kwụsiri ike nke na-enwu nke ọma.