Co 2+ :MgAl 2 O 4 crystal passive Q-switch performance at 1.34,1.44 and 1.54 micron

Cobalt doped materials, such as Co2+:ZnSe[1,2], Co2+:YSGG, and Co2+:MgAl2O4[3,4], have shown promise for use as high performance saturable absorber Q-switches for near infrared lasers.