KYW Crystal Options

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The Yb:KYW crystal’s proficiency in light-weight absorption at all around 981 nm tends to make the crystal compatible for diode pumping. It really is further more enhanced by its impressive performance in this process, coupled with its very low quantum defect.

FIG. four. Autocorrelation functionality of the heartbeat 共a兲and spectrum 共b兲of a laser with a rectangular active factor for an output electrical power of seven hundred mW. The width of

By substituting yttrium with ytterbium within the crystal lattice of Yb:KYW mainly because of the similar sizes of such chemical features around one hundred% of Yb-doping may very well be reached. This unique attribute permits ytterbium to go ahead and take place of yttrium with pretty much no disruption into the crystal’s lattice.

The monoclinic crystal buildings ends in a pure birefringence, helping to stay clear of click here thermally induced polarization rotation and depolarization decline.

PDF Yb:KGW and Yb:KYW crystals have wide emission bandwidths and therefore are used as lasing materials to make ultrashort (~ a hundred-two hundred fs) substantial electric power pulses. Direct pump of Yb:KGW/KYW crystals with laser diodes functioning at 981 nm supports compact laser systems.

A large brightnessQ-switched oscillator and regenerative amplifier determined by a twin-crystal Yb:KGW laser

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Nonetheless, once Nd3+:YAG turned commercially obtainable, the interest in CaWO4 dropped sharply. In afterwards yrs, sure other tungstate crystals began to catch the attention of loads of focus.

Whilst ytterbium-doped laser attain media frequently show a little quantum defect, ytterbium-doped tungstates allow for for significantly small values. For example, a 1030-nm Yb:YAG laser would Commonly be pumped all over 940 nm, While Yb:KGW or Yb:KYW can be most efficiently pumped all over 981 nm.

This tandem of attributes has much-reaching implications, especially in the development of compact yet powerfull lasers.

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