The Greatest Guide To KYW Crystal
The Greatest Guide To KYW Crystal
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The Yb-doped potassium yttrium tungstate (Yb:KYW) crystal, when compared to its counterpart Yb:KGW, is a impressive product that performs an important function in laser engineering. Its Principal operate is usually to make ultrashort pulses of light, spanning just a few hundred femtoseconds.
The Yb:KYW crystal’s proficiency in light-weight absorption at about 981 nm can make the crystal well matched for diode pumping. It's more Increased by its impressive effectiveness in this process, coupled with its small quantum defect.
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This paper describes a femtosecond laser regenerative amplifier based upon two Yb:KYW crystals with immediate longitudinal pumping by impressive linear arrays of semiconductor injection lasers owning fiber output. To circumvent spectral narrowing through amplification plus the corresponding lengthening in the amplified pulse when it really is compressed, a combination of two Yb:KYW crystals ended up utilised, Using the spectral maxima of your amplification shifted relative to each other and with spectral profiling from the amplified radiation.
Right before the development of Nd:YAG, Nd3+:CaWO4 was an important exceptional-earth-doped laser acquire medium. It had been in actual fact used in the primary continuously working crystal laser.
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Spatial structure from the beam and also the corresponding intensity profiles I on the output from the laser.
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By substituting yttrium with ytterbium during the crystal lattice of Yb:KYW mainly because of the identical measurements of these chemical elements nearly one hundred% of Yb-doping might be achieved.
The thermal conductivity of common double tungstates is with the purchase to three–4 W/(K m) �?which isn't poor as opposed with other laser crystals (Despite the fact that a number of periods lower than for YAG), and pretty substantial in contrast Together with the thermal conductivity of usual glasses.
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