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Q-Switch

Pulsed laser systems can be realized with active or passive Q-switching.
There are the following options for realizing such systems: While actively Q-switched systems consist of acousto-opticor electro-optic modulators, passively Q-switched systems use saturable absorbers such as Cr:YAG, (for lasers with approx. 1 µm wavelength).
The most common Q-switched lasers in this range are Nd:YAG, Nd:YVO4 and Nd:YLF.
Er:YAG and Tu-doped crystals are available for longer wavelengths.

In addition to the single-crystal Cr:YAG absorber, IMPEX also offers integrated variants as bonded crystals.

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