The KYW Crystal Diaries
The KYW Crystal Diaries
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In practical phrases, the Yb:KYW crystal has uncovered its specialized niche in superior-power laser apps because of its capacity to generate high Power ultrashort laser pulses although preserving a compact measurement. The interplay of its characteristics �?seamless ytterbium substitution, strong absorption traits, ultrashort pulse generation and efficiency in Electrical power conversion �?positions the Yb:KYW crystal like a cornerstone during the laser know-how, masking various fields ranging from scientific analysis to industrial applications.
The comparison with glasses is acceptable Considering that the huge achieve bandwidth will allow e.g. tungstate femtosecond lasers and tunable lasers to contend with glass lasers.
time. Crystals on the compound melts congruently at 1007 oC, nonetheless melt crystallization of top of the range crystal is difficult resulting from period transition at ~920 oC. The top seeded solution technique from
The absorption and emission spectra of Yb:KYW Crystals display strong peaks at 980 nm and 1030 nm, respectively, guaranteeing economical Electrical power conversion and superior general performance in laser units.
By substituting yttrium with ytterbium during the crystal lattice of Yb:KYW a result of the related sizes of these chemical features approximately one hundred% of Yb-doping might be obtained. This exclusive attribute permits ytterbium to take the position of yttrium with pretty much no disruption on the crystal’s lattice.
Immediately after air drying and subsequent cleaning that has a cotton cloth soaked in alcohol, the movie surface confirmed no indications of peeling or scratches.
Raman, luminescence and transmission spectra expose optical attributes owing to your existence of thulium ions, and as a consequence the elements may very well be further more analyzed inside the scope of laser and luminescence programs.
A superior brightnessQ-switched oscillator and regenerative amplifier based upon a twin-crystal Yb:KGW laser
... at 50 percent-top had been produced in a very master oscillator with selfsynchronization from the axial modes, described inside our previously posting. 21 The new version in the laser, contrary to that explained in our earlier write-up, employed an Yb:KYW crystal by having an N pcut (optical axis N p of your index ellipsoid was parallel to the propagation path in the laser radiation), Along with the polarization with the created radiation directed together the N m axis.
... Not just the position of crystal while in the cavity read more but additionally the amplification axis of crystal influences the laser Procedure drastically, as the absorption and emission cross sections in the crystal are pretty distinct in accordance with the orientation in the crystal.
Whilst ytterbium-doped laser gain media normally exhibit a little quantum defect, ytterbium-doped tungstates allow for for specially tiny values. Such as, a 1030-nm Yb:YAG laser would normally be pumped around 940 nm, whereas Yb:KGW or Yb:KYW could possibly be most proficiently pumped all around 981 nm.
Li2WO4-WO3 flux was efficiently used minimizing The expansion temperature under 900 oC. According to solitary crystal x-ray measurements, the crystal corresponds for the P2/n Place team.
Yb:KYW crystal (Yb-doped potassium yttrium tungstate) compared to its counterpart Yb:KGW, is actually a exceptional content that plays a crucial position in laser know-how. Its Key purpose will be to make ultrashort pulses of light, spanning just a few hundred femtoseconds.
Inquire RP Photonics for any assistance regarding tungstate lasers, such as femtosecond lasers and superior-power lasers.