| http://www.w3.org/ns/prov#value | - However, actively Q-switched lasers, i.e. Q-switched lasers in which the control of the Q-switching is done directly at the Q-switch, for instance by changing the polarisation of the light, have other problems, such as high switching voltages, possibility of multiple pulsing due to piezoelectric effects and large laser cavities due to large size required regarding the active modulator.
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