Continuous and pulsed modes of operation-Q-switching

- Jun 20, 2018-


In a Q-switched laser, the population inversion is allowed to build up by introducing loss inside the resonator which exceeds the gain of the medium; this can also be described as a reduction of the quality factor or 'Q' of the cavity. Then, after the pump energy stored in the laser medium has approached the maximum possible level, the introduced loss mechanism (often an electro- or acousto-optical element) is rapidly removed (or that occurs by itself in a passive device), allowing lasing to begin which rapidly obtains the stored energy in the gain medium. This results in a short pulse incorporating that energy, and thus a high peak power.

主图3 尺寸缩小.png

High Power Q-Switched 1064nm&532nm tattoo removal machine

主图5 尺寸缩小.png

Q Switched ND YAG Laser Pigmentation Removal Machine