KYW Crystal - An Overview
KYW Crystal - An Overview
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The Yb:KYW crystal’s proficiency in light-weight absorption at all around 981 nm helps make the crystal well matched for diode pumping. It is actually more Increased by its exceptional performance in this process, coupled with its very low quantum defect.
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Optical format of the laser with immediate pumping Using the radiation of semiconductor injection lasers. LD is really an IPG Photonics laser diode with fiber output in the radiation, WP is a fifty percent-wave plate, CL can be a collimating lens, FL is often a concentrating lens, AE is really an Energetic factor created from an Yb:KYW crystal, DM is often a spherical dichroic mirror, M1-M6 are definitely the cavity mirrors, OC is the output mirror, and SAM is usually a semiconductor saturable-absorber mirror.
Just before the development of Nd:YAG, Nd3+:CaWO4 was a very important rare-earth-doped laser acquire medium. It absolutely was the truth is used in the main constantly operating crystal laser.
Raman, luminescence and transmission spectra reveal optical features owing on the existence of thulium ions, and for that reason the products could be even more researched in the scope of laser and luminescence apps.
five mm apart from the center in the beam caustic. In order to Check out the manner matching simulation, we executed the experiment with Ng-Reduce crystal oscillator, which was made Earlier As well as in a exact condition with simulation [eleven]. As demonstrated in Figure 3(b) with purple dots and line, the CW output ability is extremely dependent on the posture of laser crystal along with the experimental outcome coincides perfectly with simulation click here end result. For a Take note, multimode Procedure transpired in experiment when the sizing of the pump beam is bigger than TEM00 cavity mode and it will cause higher CW output electric power from the displacement location under 3.5 mm.
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By substituting yttrium with ytterbium during the crystal lattice of Yb:KYW because of the related dimensions of such chemical elements approximately one hundred% of Yb-doping may very well be accomplished.
When ytterbium-doped laser obtain media frequently exhibit a little quantum defect, ytterbium-doped tungstates enable for particularly tiny values. For example, a 1030-nm Yb:YAG laser would Usually be pumped all around 940 nm, Whilst Yb:KGW or Yb:KYW could possibly be most efficiently pumped all around 981 nm.
This tandem of attributes has significantly-achieving implications, significantly in the development of compact still powerfull lasers.
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