Everything about KYW Crystal

Everything about KYW Crystal

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The Yb-doped potassium yttrium tungstate (Yb:KYW) crystal, in comparison to its counterpart Yb:KGW, can be a exceptional product that plays a crucial job in laser technology. Its Principal operate is usually to crank out ultrashort pulses of light, spanning only a few hundred femtoseconds.

The Yb:KYW crystal’s proficiency in light-weight absorption at all over 981 nm helps make the crystal well suited for diode pumping. It truly is further enhanced by its impressive performance in this process, coupled with its reduced quantum defect.

FIG. 4. Autocorrelation functionality of the pulse 共a兲and spectrum 共b兲of the laser with an oblong active aspect for an output ability of seven-hundred mW. The width of

By substituting yttrium with ytterbium in the crystal lattice of Yb:KYW mainly because of the related sizes of these chemical components as much as a hundred% of Yb-doping could possibly be realized. This exclusive attribute permits ytterbium to take the area of yttrium with nearly no disruption for the crystal’s lattice.

The monoclinic crystal structures brings about a normal birefringence, helping to stay away from thermally induced polarization rotation and depolarization loss.

PDF Yb:KGW and Yb:KYW crystals have wide emission bandwidths and they are applied as lasing components to produce ultrashort (~ a hundred-200 fs) significant electrical power pulses. Immediate pump of Yb:KGW/KYW crystals with laser diodes working at 981 nm supports compact laser methods.

Spatial framework of the beam as well as the corresponding intensity profiles I within the output of the laser.

For tungstates, the ytterbium doping focus can be extremely significant devoid of read more important quenching as the replaced ions have a really similar ion radius, along with the inter-ion distance is pretty big.

Superior-energy repetitively pulsed ytterbium lasers with supershort pulse width and immediate diode pumping for technological and biomedical programs

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Concurrently, a shorter laser wavelength is often attained; it is achievable to operate using a quantum defect perfectly below one%. To be a consequence, the warmth generation could be so small this partly compensates the reduced thermal conductivity.