Two kinds of laser emission state
The laser can be emitted in two states: continuous or intermittent. The continuous wave laser emits continuous light with relatively fixed energy. The light emission is controlled by a pedal or hand-operated manipulator. In some systems, use the shutter to interrupt the light, resulting in intermittent exposure. However, continuous lasers using shutter interrupts are different from pulsed lasers, both in design and in launchers, and have a longer energy peak than the duration of pulsed lasers.
The same time as Pulsed laser emission of high-energy pulsed light, and continuous wavelength laser, light radiation is not continuous, the rapid production of energy, and gradually reduced. This allows each pulse to provide the highest energy. For example, the Q-switched laser pulse is shorter than 1 billionth of a second, and in such a short period of time, the light continues to amplify in the resonant cavity until the highest energy peak. And then in a very short period of time the energy release, which is done through the electromagnetic switch.