The Definitive Guide to KYW Crystal
The Definitive Guide to KYW Crystal
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In simple terms, the Yb:KYW crystal has located its specialized niche in higher-power laser apps on account of its power to generate higher Vitality ultrashort laser pulses whilst maintaining a compact size. The interplay of its characteristics �?seamless ytterbium substitution, strong absorption properties, ultrashort pulse technology and effectiveness in Strength conversion �?positions the Yb:KYW crystal for a cornerstone in the laser technological innovation, masking varied fields ranging from scientific investigate to industrial purposes.
The comparison with glasses is suitable Considering that the large obtain bandwidth makes it possible for e.g. tungstate femtosecond lasers and tunable lasers to contend with glass lasers.
time. Crystals from the compound melts congruently at 1007 oC, on the other hand melt crystallization of top of the range crystal is difficult resulting from stage transition at ~920 oC. The best seeded solution method from
Color-coded reflectivity of the Bragg mirror as being a functionality of wavelength and angle in the incident beam.
By substituting yttrium with ytterbium within the crystal lattice of Yb:KYW due to the identical dimensions of those chemical features up to 100% of Yb-doping could possibly be reached. This unique attribute permits ytterbium to go ahead and take spot of yttrium with just about no disruption to your crystal’s lattice.
Adhesion Take a look at Compliant with MIL-C-675C army expectations, an adhesion take a look at concerned making use of a tape that satisfies LT-90 technical specs onto the lens film layer. The tape was affixed totally then eradicated vertically. This method was performed 3 times, causing no blistering or peeling.
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A significant brightnessQ-switched oscillator and regenerative amplifier based on a dual-crystal Yb:KGW website laser
... at 50 %-height have been produced in a very grasp oscillator with selfsynchronization with the axial modes, explained in our earlier posting. 21 The new version from the laser, in contrast to that described inside our earlier short article, utilized an Yb:KYW crystal by having an N pcut (optical axis N p with the index ellipsoid was parallel to the propagation way of the laser radiation), Together with the polarization from the produced radiation directed alongside the N m axis.
Nonetheless, after Nd3+:YAG became commercially readily available, the fascination in CaWO4 dropped sharply. In afterwards years, sure other tungstate crystals began to entice a lot of attention.
The thermal conductivity of widespread double tungstates is on the order to three–four W/(K m) �?which is not bad when compared with other laser crystals (Though numerous occasions less than for YAG), and rather huge when compared With all the thermal conductivity of common Eyeglasses.
This tandem of characteristics has much-achieving implications, significantly in the construction of compact yet powerfull lasers.
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