KYW Crystal - An Overview
KYW Crystal - An Overview
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The Yb-doped potassium yttrium tungstate (Yb:KYW) crystal, as compared to its counterpart Yb:KGW, is often a outstanding material that performs an essential function in laser technologies. Its Principal functionality would be to make ultrashort pulses of sunshine, spanning just some hundred femtoseconds.
time. Crystals of the compound melts congruently at 1007 oC, nevertheless soften crystallization of top quality crystal is not possible because of stage changeover at ~920 oC. The highest seeded Option method from
FIG. four. Autocorrelation purpose of the heartbeat 共a兲and spectrum 共b兲of a laser with a rectangular Energetic factor for an output electrical power of seven-hundred mW. The width of
By substituting yttrium with ytterbium during the crystal lattice of Yb:KYW a result of the equivalent dimensions of such chemical aspects nearly one hundred% of Yb-doping may very well be accomplished. This special attribute permits ytterbium to take the area of yttrium with virtually no disruption towards the crystal’s lattice.
Just after air drying and subsequent cleaning using a cotton cloth soaked in Liquor, the film floor confirmed no signs of peeling or scratches.
PDF Yb:KGW and Yb:KYW crystals have wide emission bandwidths and are utilized as lasing materials to generate ultrashort (~ 100-200 fs) higher energy pulses. Direct pump of Yb:KGW/KYW crystals with laser diodes working at 981 nm supports compact laser units.
A high brightnessQ-switched oscillator and regenerative amplifier dependant on a dual-crystal Yb:KGW laser
... at 50 percent-height ended up produced in the grasp oscillator with selfsynchronization from the axial modes, described inside our earlier report. 21 The new edition with the laser, contrary to that described in our earlier report, utilized an Yb:KYW crystal with an N pcut (optical axis N p on the index ellipsoid was parallel into the propagation way on the laser radiation), Along with the polarization with the generated radiation directed together the KYW Crystal N m axis.
... Don't just the placement of crystal while in the cavity but in addition the amplification axis of crystal affects the laser operation drastically, because the absorption and emission cross sections in the crystal are very different according to the orientation on the crystal.
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Li2WO4-WO3 flux was correctly applied lessening the growth temperature beneath 900 oC. According to solitary crystal x-ray measurements, the crystal corresponds to the P2/n space group.
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