New Step by Step Map For KYW Crystal
New Step by Step Map For KYW Crystal
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The Yb-doped potassium yttrium tungstate (Yb:KYW) crystal, in comparison to its counterpart Yb:KGW, is actually a remarkable content that plays an essential role in laser technology. Its Main function is usually to create ultrashort pulses of light, spanning just some hundred femtoseconds.
Femtosecond laser based on Yb:KYW crystals with suppression of spectral narrowing inside a regenerative amplifier by spectral profiling of the heartbeat
FIG. four. Autocorrelation functionality of the heart beat 共a兲and spectrum 共b兲of a laser with an oblong Energetic ingredient for an output energy of seven-hundred mW. The width of
By substituting yttrium with ytterbium from the crystal lattice of Yb:KYW as a result of identical sizes of these chemical aspects up to 100% of Yb-doping might be attained. This special characteristic permits ytterbium to take the place of yttrium with practically no disruption towards the crystal’s lattice.
Adhesion Take a look at Compliant with MIL-C-675C military specifications, an adhesion examination included implementing a tape that meets LT-ninety requirements click here onto the lens movie layer. The tape was affixed fully and after that eradicated vertically. This procedure was performed 3 times, leading to no blistering or peeling.
Raman, luminescence and transmission spectra reveal optical functions owing on the existence of thulium ions, and as a consequence the materials could possibly be even more researched during the scope of laser and luminescence purposes.
Spatial framework in the beam and the corresponding depth profiles I within the output of your laser.
For tungstates, the ytterbium doping concentration can be quite high without having major quenching as the changed ions have a very comparable ion radius, as well as the inter-ion distance is comparatively massive.
By substituting yttrium with ytterbium from the crystal lattice of Yb:KYW a result of the comparable dimensions of these chemical components nearly one hundred% of Yb-doping can be reached.
Although ytterbium-doped laser obtain media typically exhibit a little quantum defect, ytterbium-doped tungstates allow for for significantly smaller values. As an example, a 1030-nm Yb:YAG laser would Typically be pumped about 940 nm, Whilst Yb:KGW or Yb:KYW may very well be most proficiently pumped about 981 nm.
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