introduction
Diode pumped solid lasers (DPSS) are widely used in industrial, scientific research and military fields.These applications include laser ablation, laser cutting, laser welding, laser ranging, laser detection, etc.Each domain has various requirements for DPSS lasers, such as pulse energy, pulse width, and beam quality.
Traditionally, high-energy pulsed DPSS lasers are obtained through q-switching techniques.It is generally continuous (CW) laser diode array for laser medium such as Nd:YAG rod or slice for pump.However, if you use a quasi-continuous (QCW) laser diode array pump, we can gain more advantages.The QCW laser diode array has a higher peak power than the CW.In addition, multiple peak value power QCW bars are encapsulated in the same area.These bars can be considered as a single CW bar, because each bar runs at a lower average heat loss in the QCW mode.These factors, combined with the ability to assemble a more compact diode array, can run at a very high peak power in QCW mode.Furthermore, the QCW pump can reduce the heat of the laser gain material, thus effectively reducing the thermal cluster effect and improving the beam quality of the laser.
