The smart Trick of KYW Crystal That Nobody is Discussing
The smart Trick of KYW Crystal That Nobody is Discussing
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The Yb-doped potassium yttrium tungstate (Yb:KYW) crystal, in comparison to its counterpart Yb:KGW, can be a extraordinary product that plays an essential position in laser technology. Its Main functionality is always to produce ultrashort pulses of light, spanning just some hundred femtoseconds.
The Yb:KYW crystal’s proficiency in mild absorption at around 981 nm helps make the crystal well suited for diode pumping. It can be even more enhanced by its outstanding performance in this process, coupled with its low quantum defect.
The absorption and emission spectra of Yb:KYW Crystals Screen solid peaks at 980 nm and 1030 nm, respectively, ensuring economical Electrical power conversion and superior functionality in laser techniques.
By substituting yttrium with ytterbium in the crystal lattice of Yb:KYW because of the similar dimensions of such chemical elements up to a hundred% of Yb-doping can be achieved. This exclusive attribute permits ytterbium to take the put of yttrium with pretty much no disruption for the crystal’s lattice.
Just after air drying and subsequent cleaning that has a cotton fabric soaked in Alcoholic beverages, the film surface confirmed no indications of peeling or scratches.
Raman, luminescence and transmission spectra reveal optical features owing on the existence of thulium ions, and therefore the materials could be further more analyzed from the scope of laser and luminescence programs.
Tungstates are likely to own higher Raman coefficients (�?Raman scattering). Therefore, they will produce major Raman achieve at moderate optical intensities. It is feasible to use the laser crystal itself being a Raman converter.
... at 50 percent-top were being generated in the master oscillator with selfsynchronization in the axial modes, explained in our previously article. 21 The new version from the laser, as opposed to that explained inside our previously write-up, utilized an Yb:KYW crystal by having an N check here pcut (optical axis N p on the index ellipsoid was parallel into the propagation way of your laser radiation), with the polarization on the generated radiation directed alongside the N m axis.
... Not only the place of crystal from the cavity but will also the amplification axis of crystal has an effect on the laser Procedure drastically, since the absorption and emission cross sections of the crystal are pretty different based on the orientation of your crystal.
The thermal conductivity of common double tungstates is from the order to three–four W/(K m) �?which isn't bad in contrast with other laser crystals (Even though various occasions under for YAG), and reasonably significant in contrast Along with the thermal conductivity of regular glasses.
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Question RP Photonics for virtually any advice regarding tungstate lasers, such as femtosecond lasers and superior-power lasers.