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, is a extraordinary material that plays an important position in laser technological know-how. Its Main functionality would be to crank out ultrashort pulses of sunshine, spanning only a few hundred femtoseconds.
The Yb:KYW crystal’s proficiency in gentle absorption at all over 981 nm would make the crystal well matched for diode pumping. It is further more Improved by its extraordinary efficiency in this process, coupled with its very low quantum defect.
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By substituting yttrium with ytterbium within the crystal lattice of Yb:KYW due to equivalent measurements of such chemical aspects approximately a hundred% of Yb-doping can be obtained. This special attribute permits ytterbium to go ahead and take location of yttrium with pretty much no disruption to your crystal’s lattice.
Adhesion Take a look at Compliant with MIL-C-675C armed service criteria, an adhesion test associated making use of a tape that meets LT-90 technical specs on to the lens film layer. The tape was affixed fully after which removed vertically. This procedure was executed 3 times, resulting in no blistering or peeling.
FIG. one. Optical layout of a laser with direct pumping Using the radiation of semiconductor injection click here lasers. LD is really an IPG Photonics laser diode with fiber output
A high brightnessQ-switched oscillator and regenerative amplifier depending on a twin-crystal Yb:KGW laser
... at 50 %-top were being produced inside a grasp oscillator with selfsynchronization of your axial modes, described inside our earlier article. 21 The new edition of your laser, compared with that described in our before short article, employed an Yb:KYW crystal using an N pcut (optical axis N p on the index ellipsoid was parallel to your propagation route from the laser radiation), Using the polarization of the generated radiation directed along the N m axis.
... Not just the placement of crystal within the cavity but also the amplification axis of crystal influences the laser operation considerably, because the absorption and emission cross sections from the crystal are pretty different in accordance with the orientation in the crystal.
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This tandem of attributes has much-achieving implications, significantly in the construction of compact however powerfull lasers.
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