Getting My KYW Crystal To Work
Getting My KYW Crystal To Work
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The comparison with glasses is appropriate Because the massive obtain bandwidth enables e.g. tungstate femtosecond lasers and tunable lasers to contend with glass lasers.
time. Crystals of your compound melts congruently at 1007 oC, nonetheless melt crystallization of top quality crystal is extremely hard resulting from period changeover at ~920 oC. The very best seeded Remedy approach from
Color-coded reflectivity of the Bragg mirror like a functionality of wavelength and angle in the incident beam.
By substituting yttrium with ytterbium inside the crystal lattice of Yb:KYW a result of the equivalent dimensions of these chemical things around a hundred% of Yb-doping could possibly be achieved. This exclusive attribute permits ytterbium to take the area of yttrium with virtually no disruption on the crystal’s lattice.
Adhesion Check Compliant with MIL-C-675C military services expectations, an adhesion exam involved making use of a tape that satisfies LT-90 specs onto the lens film layer. The tape was affixed thoroughly and after that taken out vertically. This technique was executed thrice, causing no blistering or peeling.
PDF Yb:KGW and Yb:KYW crystals have wide emission bandwidths and they are used as lasing products to deliver ultrashort (~ a hundred-200 fs) high power pulses. Immediate pump of Yb:KGW/KYW crystals with laser diodes functioning at 981 nm supports compact laser devices.
A large brightnessQ-switched oscillator and regenerative amplifier dependant on a dual-crystal Yb:KGW laser
For tungstates, the ytterbium doping concentration can be extremely significant with no substantial quenching as the replaced ions have an exceedingly very similar ion radius, and also the inter-ion length is relatively substantial.
Having said that, after Nd3+:YAG grew to become commercially available, the curiosity in CaWO4 dropped sharply. In afterwards many years, sure other tungstate crystals began to bring in a great deal of notice.
When ytterbium-doped laser acquire media normally show a little quantum defect, ytterbium-doped tungstates permit for specially small values. As an example, a 1030-nm Yb:YAG laser more info would Typically be pumped all around 940 nm, While Yb:KGW or Yb:KYW could be most efficiently pumped about 981 nm.
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The polarized absorption spectra of Tm3+-doped potassium yttrium tungstate (Tm:KY(WO4)2) crystal at area temperature were being calculated. The emission spectrum and life span from the 3 F four thrilled state ended up determined. Working with common and modified Judd–Ofelt theories, the depth parameters and the radiative lifetimes have been calculated and superior agreement Together with the experimental results was obtained for both equally theories.
Ask RP Photonics for almost any advice concerning tungstate lasers, like femtosecond lasers and higher-energy lasers.