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A Q-switched laser is a laser to which the technique of active or passive Q switching is applied, so that it emits energetic pulses. Typical applications of Q-switched lasers are material processing, pumping nonlinear frequency conversion devices, range finding, and remote sensing. |
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Q switching is a technique to obtain energetic short pulses from a laser. Here, the cavity losses are kept on a high level until the pumped gain medium has stored a significant amount of energy. Then, the losses are suddenly reduced to a small value, so that the power of the laser radiation in the cavity builds up very quickly. This results in a short pulse, the energy of which can be in the millijoule range even for rather small lasers. Lasers to which such a technique is applied are called Q-switched lasers. |
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Q~Switched pulsed DPSS Lasers |
Wavelength (nm) |
Single pulse energy (μJ) |
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1053 |
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1064 |
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1319 |
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