Fascination About KYW Crystal
Fascination About KYW Crystal
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In sensible terms, the Yb:KYW crystal has discovered its market in higher-electrical power laser programs resulting from its capacity to make superior energy ultrashort laser pulses when protecting a compact sizing. The interaction of its characteristics �?seamless ytterbium substitution, solid absorption features, ultrashort pulse era and efficiency in Electrical power conversion �?positions the Yb:KYW crystal for a cornerstone while in the laser engineering, masking various fields starting from scientific analysis to industrial apps.
The comparison with glasses is appropriate Considering that the large gain bandwidth will allow e.g. tungstate femtosecond lasers and tunable lasers to contend with glass lasers.
We current a twin-crystal Yb:KGW laserthat iscapable to function for a Q-switched oscillator with output ability up to 24 W and pulse length of twenty ns,or to be a regenerative amplifier with output power as much as 21 W and pulse duration down below two hundred fs soon after compression of chirped pulses. Equally lasers have outstanding beam top quality with beam parameter M2
The absorption and emission spectra of Yb:KYW Crystals Screen solid peaks at 980 nm and 1030 nm, respectively, guaranteeing economical Power conversion and significant effectiveness in laser systems.
This paper describes a femtosecond laser regenerative amplifier dependant on two Yb:KYW crystals with direct longitudinal pumping by highly effective linear arrays of semiconductor injection lasers owning fiber output. To prevent spectral narrowing all through amplification along with the corresponding lengthening of the amplified pulse when it is actually compressed, a mix of two Yb:KYW crystals ended up applied, Together with the spectral maxima from the amplification shifted relative to one another and with spectral profiling from the amplified radiation.
Following air drying and subsequent cleansing that has a cotton cloth soaked in alcohol, the movie surface area confirmed no indications of peeling or scratches.
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A substantial brightnessQ-switched oscillator and regenerative amplifier according to a dual-crystal Yb:KGW laser
... at fifty percent-height were being generated in a learn oscillator with selfsynchronization with the axial modes, described inside our previously write-up. 21 The new version from the laser, unlike that explained in our previously post, made use of an Yb:KYW crystal by having an N pcut (optical axis N p from the index ellipsoid was parallel on the propagation route on the laser radiation), With all the polarization of the produced radiation directed together the N m axis.
Large-power repetitively pulsed ytterbium lasers with supershort pulse width and direct diode pumping for technological and biomedical purposes
Though ytterbium-doped laser acquire media typically exhibit a small quantum defect, ytterbium-doped tungstates let for specially smaller values. For example, a 1030-nm Yb:YAG laser would normally be pumped read more around 940 nm, Whilst Yb:KGW or Yb:KYW could be most efficiently pumped about 981 nm.
This tandem of attributes has significantly-achieving implications, especially in the construction of compact nonetheless powerfull lasers.
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