KYW Crystal Secrets
KYW Crystal Secrets
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We existing a twin-crystal Yb:KGW laserthat iscapable to work being a Q-switched oscillator with output ability up to 24 W and pulse duration of twenty ns,or for a regenerative amplifier with output ability nearly 21 W and pulse period beneath 200 fs following compression of chirped pulses. Each lasers have excellent beam quality with beam parameter M2
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By substituting yttrium with ytterbium inside the crystal lattice of Yb:KYW due to similar sizes of these chemical components around a hundred% of Yb-doping could be accomplished. This distinctive characteristic permits ytterbium to take the location of yttrium with practically no disruption towards the crystal’s lattice.
The monoclinic crystal buildings ends in a normal birefringence, helping to steer clear of thermally induced polarization rotation and depolarization loss.
Raman, luminescence and transmission spectra expose optical capabilities owing into the existence of thulium ions, and therefore the materials might be further studied within the scope of laser and luminescence applications.
Spatial structure in the beam and the corresponding depth profiles I in the output with the laser.
For tungstates, the ytterbium doping focus can be extremely significant without the need of sizeable quenching since the changed ions have a very comparable ion radius, plus the inter-ion length read more is fairly huge.
... Don't just the posture of crystal in the cavity but also the amplification axis of crystal affects the laser Procedure enormously, as the absorption and emission cross sections of your crystal are pretty unique based on the orientation in the crystal.
The thermal conductivity of frequent double tungstates is on the order to 3–four W/(K m) �?which isn't lousy in comparison with other laser crystals (Whilst quite a few instances fewer than for YAG), and relatively substantial in contrast with the thermal conductivity of normal Eyeglasses.
Li2WO4-WO3 flux was efficiently utilized lessening The expansion temperature beneath 900 oC. In line with single crystal x-ray measurements, the crystal corresponds on the P2/n Place group.
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