Passively Q-switched Nd:GGG laser with a SWCNT as saturable absorber
A diode-pumped passively Q-switched Nd:GGG laser with a single-walled carbon nanotube as saturable absorber has been realized. A maximum average output power of 1.24W and a minimum pulse duration of 49.8ns were obtained at the incident pump power of 7.69W. Corresponding to a maximum single pulse energy and a highest peak power were 4.3\(\upmu \hbox {J}\) and 85W, respectively. The pulse repetition rates varied from 62 to 292kHz versus the increase of the incident pump power.
passive q-switch nd:ggg crystal swcnt saturable absorber