The smart Trick of KYW Crystal That No One is Discussing
The smart Trick of KYW Crystal That No One is Discussing
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In sensible phrases, the Yb:KYW crystal has uncovered its market in large-electricity laser purposes because of its capability to create significant Electrical power ultrashort laser pulses though maintaining a compact dimensions. The interplay of its characteristics �?seamless ytterbium substitution, sturdy absorption qualities, ultrashort pulse technology and effectiveness in Vitality conversion �?positions the Yb:KYW crystal like a cornerstone inside the laser technological innovation, covering numerous fields starting from scientific study to industrial purposes.
The comparison with glasses is suitable For the reason that significant attain bandwidth enables e.g. tungstate femtosecond lasers and tunable lasers to compete with glass lasers.
We present a twin-crystal Yb:KGW laserthat iscapable to operate like a Q-switched oscillator with output ability around 24 W and pulse size of 20 ns,or like a regenerative amplifier with output ability as much as 21 W and pulse length beneath 200 fs soon after compression of chirped pulses. Both of those lasers have superb beam good quality with beam parameter M2
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By substituting yttrium with ytterbium in the crystal lattice of Yb:KYW as a result of very similar sizes of those chemical elements approximately a hundred% of Yb-doping could be obtained. This one of a kind characteristic permits ytterbium to take the area of yttrium with just about no disruption to the crystal’s lattice.
Adhesion Examination Compliant with MIL-C-675C military expectations, an adhesion exam involved implementing a tape that meets LT-90 requirements onto the lens film layer. The tape was affixed entirely and then eliminated vertically. This treatment was done thrice, causing no blistering or peeling.
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Tungstates are inclined to obtain significant Raman coefficients (�?Raman scattering). Hence, they are able to deliver sizeable Raman achieve at moderate optical intensities. It is achievable to utilize the laser crystal by itself for a Raman converter.
... at half-height had been generated inside a master oscillator with selfsynchronization from the axial modes, described in our before posting. 21 The new edition on the laser, contrary to that described inside our before report, utilised an Yb:KYW crystal by having an N pcut (optical axis N p on the index ellipsoid was parallel towards the propagation way with the laser radiation), Together with the polarization in the created radiation directed along the N m axis.
By substituting yttrium with ytterbium inside the crystal lattice of Yb:KYW due to the equivalent sizes of such chemical things approximately one hundred% of Yb-doping can be realized.
While ytterbium-doped laser obtain media frequently exhibit a small quantum defect, ytterbium-doped tungstates let for significantly 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 effectively pumped about 981 nm.
Li2WO4-WO3 flux was efficiently used lowering The expansion temperature below 900 oC. As outlined by single crystal x-ray measurements, the crystal corresponds on the P2/n House team.
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