The Single Best Strategy To Use For KYW Crystal
The Single Best Strategy To Use For KYW Crystal
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The acquire bandwidth e.g. of Yb:KGW and Yb:KYW is quite massive in comparison with that of Yb:YAG. This allows for wide wavelength tunability and for A great deal shorter pulse durations from method-locked lasers. Values properly beneath one hundred fs are already attained with passive manner locking.
The comparison with glasses is appropriate since the significant get bandwidth lets e.g. tungstate femtosecond lasers and tunable lasers to compete with glass lasers.
The Yb:KYW crystal’s proficiency in mild absorption at about 981 nm would make the crystal well matched for diode pumping. It's more Improved by its amazing performance in this method, coupled with its small quantum defect.
FIG. four. Autocorrelation perform of the heart beat 共a兲and spectrum 共b兲of a laser with a rectangular Lively component for an output ability of 700 mW. The width of
This paper describes a femtosecond laser regenerative amplifier depending on two Yb:KYW crystals with direct longitudinal pumping by impressive linear arrays of semiconductor injection lasers owning fiber output. To forestall spectral narrowing for the duration of amplification as well as corresponding lengthening with the amplified pulse when it really is compressed, a combination of two Yb:KYW crystals ended up employed, with the spectral maxima on the amplification shifted relative to each other and with spectral profiling of the amplified radiation.
Just before the event of Nd:YAG, Nd3+:CaWO4 was a vital uncommon-earth-doped laser get medium. It was in reality Utilized in the main repeatedly functioning crystal laser.
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Spatial composition of the beam as well as the corresponding intensity profiles I with the output with the laser.
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... Not only the posture of crystal during the cavity but in addition the amplification axis of crystal affects the laser operation considerably, as the absorption and emission cross sections from the crystal are rather unique in accordance with the orientation in the crystal.
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Yb:KYW crystal (Yb-doped potassium yttrium tungstate) as compared to its counterpart Yb:KGW, is a remarkable product that performs a crucial function in laser technologies. Its primary purpose is usually to produce ultrashort pulses of sunshine, spanning only a few hundred femtoseconds.
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