KYW CRYSTAL - AN OVERVIEW

KYW Crystal - An Overview

KYW Crystal - An Overview

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The comparison with glasses is suitable For the reason that significant acquire bandwidth makes it possible for e.g. tungstate femtosecond lasers and tunable lasers to contend with glass lasers.

We current a dual-crystal Yb:KGW laserthat iscapable to work for a Q-switched oscillator with output electric power around 24 W and pulse length of twenty ns,or for a regenerative amplifier with output electricity around 21 W and pulse duration down below 200 fs after compression of chirped pulses. Both equally lasers have exceptional beam quality with beam parameter M2

Color-coded reflectivity of a Bragg mirror for a functionality of wavelength and angle from the incident beam.

By substituting yttrium with ytterbium inside the crystal lattice of Yb:KYW due to equivalent sizes of these chemical things around one hundred% of Yb-doping may very well be reached. This special characteristic permits ytterbium to take the area of yttrium with almost no disruption to the crystal’s lattice.

After air drying and subsequent cleansing by using a cotton cloth soaked in Alcoholic beverages, the movie floor confirmed no indications of peeling or scratches.

PDF Yb:KGW and Yb:KYW crystals have wide emission bandwidths and so are utilized as lasing components to crank out ultrashort (~ one hundred-200 fs) higher power pulses. Immediate pump of Yb:KGW/KYW crystals with laser diodes operating at 981 nm supports compact laser techniques.

A large brightnessQ-switched oscillator and regenerative amplifier based on a dual-crystal Yb:KGW laser

... at 50 percent-peak have been produced in a very grasp oscillator with selfsynchronization of the axial modes, explained within our previously post. 21 The new version of your laser, compared with that explained in our before short article, utilised an Yb:KYW crystal with the N pcut (optical axis N p of the index ellipsoid was parallel into the propagation route in the laser radiation), Using the polarization of your generated radiation directed together the N m axis.

... Not merely the posture of crystal in the cavity but additionally the amplification axis of crystal influences the laser operation significantly, because the absorption and emission cross sections on the crystal are rather distinctive in accordance with the orientation of your crystal.

Whilst ytterbium-doped laser attain media frequently exhibit a small quantum defect, ytterbium-doped tungstates make it possible for for particularly little values. By way of example, a 1030-nm Yb:YAG laser would Commonly be pumped all-around 940 nm, Whilst Yb:KGW or Yb:KYW could be most efficiently pumped about 981 nm.

Li2WO4-WO3 flux was properly applied cutting down The expansion temperature beneath 900 oC. In keeping with single crystal x-ray measurements, the crystal corresponds on the P2/n House group.

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