New Step by Step Map For KYW Crystal
New Step by Step Map For KYW Crystal
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In functional terms, the Yb:KYW crystal has identified its market in substantial-electricity laser apps on account of its capacity to create higher Power ultrashort laser pulses when retaining a compact dimensions. The interplay of its functions �?seamless ytterbium substitution, powerful absorption characteristics, ultrashort pulse era and efficiency in Electrical power conversion �?positions the Yb:KYW crystal being a cornerstone within the laser technology, masking numerous fields starting from scientific analysis to industrial apps.
The Yb-doped potassium yttrium tungstate (Yb:KYW) crystal, compared to its counterpart Yb:KGW, is actually a impressive substance that performs a crucial function in laser technologies. Its Main perform is always to produce ultrashort pulses of light, spanning just some hundred femtoseconds.
The Yb:KYW crystal’s proficiency in light-weight absorption at about 981 nm would make the crystal well matched for diode pumping. It is more Improved by its amazing efficiency in this process, coupled with its minimal quantum defect.
The absorption and emission spectra of Yb:KYW Crystals Screen sturdy peaks at 980 nm and 1030 nm, respectively, guaranteeing successful Electrical power conversion and superior efficiency in laser techniques.
By substituting yttrium with ytterbium in the crystal lattice of Yb:KYW due to the equivalent measurements of those chemical factors approximately one hundred% of Yb-doping may very well be obtained. This unique attribute permits ytterbium to go ahead and take position of yttrium with pretty much no disruption on the crystal’s lattice.
Prior to the event of Nd:YAG, Nd3+:CaWO4 was a vital unusual-earth-doped laser attain medium. It was the truth is Employed in the very first repeatedly functioning crystal laser.
FIG. 1. Optical structure of a laser with direct pumping While using the radiation of semiconductor injection lasers. LD is undoubtedly an IPG Photonics laser diode with fiber output
5 mm in addition to the middle in the beam caustic. As a way to Verify the here mode matching simulation, we executed the experiment with Ng-Slice crystal oscillator, which was designed previously As well as in a very same condition with simulation [eleven]. As demonstrated in Determine 3(b) with pink dots and line, the CW output electric power is highly depending on the place of laser crystal as well as experimental end result coincides well with simulation end result. As a Notice, multimode Procedure occurred in experiment once the dimensions of the pump beam is larger sized than TEM00 cavity mode and it brings about bigger CW output energy while in the displacement area down below three.five mm.
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Having said that, as soon as Nd3+:YAG grew to become commercially out there, the interest in CaWO4 dropped sharply. In later yrs, specified other tungstate crystals started to appeal to many consideration.
Whilst ytterbium-doped laser obtain media normally exhibit a small quantum defect, ytterbium-doped tungstates let for notably modest values. One example is, a 1030-nm Yb:YAG laser would Generally be pumped all over 940 nm, While Yb:KGW or Yb:KYW could possibly be most effectively pumped about 981 nm.
Li2WO4-WO3 flux was properly used lowering The expansion temperature underneath 900 oC. Based on single crystal x-ray measurements, the crystal corresponds on the P2/n Place team.
Yb:KYW crystal (Yb-doped potassium yttrium tungstate) compared to its counterpart Yb:KGW, is really a outstanding material that performs a significant purpose in laser engineering. Its Major function is to crank out ultrashort pulses of light, spanning just some hundred femtoseconds.
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