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The Yb-doped potassium yttrium tungstate (Yb:KYW) crystal, in comparison with its counterpart Yb:KGW, is actually a outstanding material that plays a crucial part in laser technologies. Its Key purpose is always to create ultrashort pulses of sunshine, spanning just a couple hundred femtoseconds.

We present a dual-crystal Yb:KGW laserthat iscapable to function as being a Q-switched oscillator with output electricity up to 24 W and pulse size of twenty ns,or as being a regenerative amplifier with output electricity around 21 W and pulse length under 200 fs soon after compression of chirped pulses. Each lasers have outstanding beam top quality with beam parameter M2

The absorption and emission spectra of Yb:KYW Crystals Show sturdy peaks at 980 nm and 1030 nm, respectively, making sure economical Strength conversion and superior efficiency in laser techniques.

By substituting yttrium with ytterbium inside the crystal lattice of Yb:KYW because of the identical sizes of such chemical factors as much as a hundred% of Yb-doping may be achieved. This unique characteristic permits ytterbium to take the area of yttrium with nearly no disruption into the crystal’s lattice.

Adhesion Check Compliant with MIL-C-675C military services criteria, an adhesion exam concerned implementing a tape that meets LT-ninety specs onto the lens movie layer. The tape was affixed thoroughly then removed vertically. This technique was executed three times, resulting in no blistering or peeling.

FIG. 1. Optical structure of the laser with immediate pumping With all the radiation of semiconductor injection lasers. LD is surely an IPG Photonics laser diode with fiber output

Spatial framework from the beam plus the corresponding depth profiles I on the output of your laser.

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By substituting yttrium with ytterbium from the crystal lattice of Yb:KYW mainly because of the related measurements of those chemical features approximately 100% of Yb-doping could be realized.

Although ytterbium-doped laser obtain media frequently exhibit a little quantum defect, ytterbium-doped tungstates allow for significantly tiny values. One example is, a 1030-nm Yb:YAG laser would normally be pumped about 940 nm, While Yb:KGW or Yb:KYW may very well be most proficiently pumped close to 981 nm.

Li2WO4-WO3 flux was correctly utilized minimizing The expansion temperature beneath 900 oC. In line with one crystal x-ray measurements, the crystal corresponds for the P2/n Room group.

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