KYW Crystal - An Overview

KYW Crystal - An Overview

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The Yb-doped potassium yttrium tungstate (Yb:KYW) crystal, when compared with its counterpart Yb:KGW, is really a remarkable product that plays a vital purpose in laser technologies. Its Major operate is always to produce ultrashort pulses of light, spanning just some hundred femtoseconds.

We existing a twin-crystal Yb:KGW laserthat iscapable to work as being a Q-switched oscillator with output ability around 24 W and pulse size of twenty ns,or as a regenerative amplifier with output electricity nearly 21 W and pulse period beneath 200 fs following compression of chirped pulses. Both lasers have exceptional beam high-quality with beam parameter M2

The absorption and emission spectra of Yb:KYW Crystals display sturdy peaks at 980 nm and 1030 nm, respectively, making sure efficient Vitality conversion and significant overall performance in laser techniques.

This paper describes a femtosecond laser regenerative amplifier depending on two Yb:KYW crystals with immediate longitudinal pumping by impressive linear arrays of semiconductor injection lasers having fiber output. To prevent spectral narrowing during amplification and also the corresponding lengthening from the amplified pulse when it is compressed, a mix of two Yb:KYW crystals were being made use of, While here using the spectral maxima with the amplification shifted relative to each other and with spectral profiling from the amplified radiation.

Adhesion Examination Compliant with MIL-C-675C army benchmarks, an adhesion check included implementing a tape that meets LT-90 technical specs on to the lens movie layer. The tape was affixed totally after which taken out vertically. This process was carried out 3 times, causing no blistering or peeling.

Raman, luminescence and transmission spectra expose optical features owing towards the presence of thulium ions, and for that reason the supplies may very well be additional examined from the scope of laser and luminescence applications.

Tungstates tend to possess significant Raman coefficients (�?Raman scattering). Consequently, they could deliver significant Raman obtain at reasonable optical intensities. It is feasible to make use of the laser crystal itself like a Raman converter.

For tungstates, the ytterbium doping concentration can be extremely substantial with out sizeable quenching because the changed ions have a very identical ion radius, as well as the inter-ion length is pretty large.

By substituting yttrium with ytterbium during the crystal lattice of Yb:KYW due to the equivalent sizes of such chemical components as much as 100% of Yb-doping could be obtained.

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