The attain bandwidth e.g. of Yb:KGW and Yb:KYW is extremely massive in contrast with that of Yb:YAG. This enables for huge wavelength tunability and for A lot shorter pulse durations from mode-locked lasers. Values perfectly below a hundred fs are actually attained with passive method locking.

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The Yb:KYW crystal’s proficiency in light-weight absorption at about 981 nm can make the crystal well matched for diode pumping. It is more Improved by its impressive effectiveness in this method, coupled with its small quantum defect.

FIG. 4. Autocorrelation operate of the pulse 共a兲and spectrum 共b兲of a laser with a rectangular Lively factor for an output energy of 700 mW. The width of

By substituting yttrium with ytterbium during the crystal lattice of Yb:KYW as a result of very similar dimensions of such chemical features up to a hundred% of Yb-doping could possibly be attained. This exceptional attribute permits ytterbium to take the spot of yttrium with nearly no disruption for the crystal’s lattice.

Prior to the development of Nd:YAG, Nd3+:CaWO4 was an important scarce-earth-doped laser obtain medium. It absolutely was in reality Utilized in the main constantly working crystal laser.

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Spatial composition from the beam and also the corresponding intensity profiles I at the output of the laser.

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... Not simply the situation of crystal while in the cavity but also the amplification axis of crystal has an effect on the laser operation tremendously, as the absorption and emission cross sections with the crystal are very various based on the orientation from the crystal.

The thermal conductivity of prevalent double tungstates is on the order to three–4 W/(K m) �?which isn't negative compared with other laser crystals (Though several moments less than for YAG), and relatively significant in contrast Along with the thermal conductivity of typical glasses.

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Simultaneously, a shorter laser wavelength could be attained; it is achievable to operate that has a quantum defect effectively below one%. As a consequence, the warmth technology could be so small that this partly compensates the lessen thermal conductivity.