New Step by Step Map For KYW Crystal
New Step by Step Map For KYW Crystal
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The comparison with glasses is acceptable Considering that the substantial achieve bandwidth permits e.g. tungstate femtosecond lasers and tunable lasers to compete with glass lasers.
We existing a twin-crystal Yb:KGW laserthat iscapable to operate being a Q-switched oscillator with output electric power as many as 24 W and pulse length of twenty ns,or being a regenerative amplifier with output ability up to 21 W and pulse duration under two hundred fs right after compression of chirped pulses. The two lasers have superb beam top quality with beam parameter M2
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This paper describes a femtosecond laser regenerative amplifier determined by two Yb:KYW crystals with direct longitudinal pumping by potent linear arrays of semiconductor injection lasers getting fiber output. To prevent spectral narrowing during amplification as well as corresponding lengthening with the amplified pulse when it truly is compressed, a combination of two Yb:KYW crystals ended up applied, Together with the spectral maxima from the amplification shifted relative to each other and with spectral profiling of the amplified radiation.
Prior to the event of Nd:YAG, Nd3+:CaWO4 was a vital uncommon-earth-doped laser achieve medium. It absolutely was the truth is Employed in the very first constantly running crystal laser.
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Tungstates tend to possess substantial Raman coefficients (�?Raman scattering). Thus, they might create major Raman get at average optical intensities. It is feasible to utilize the laser crystal by itself to be a Raman converter.
For tungstates, the ytterbium doping focus can be extremely significant devoid of considerable quenching since the replaced ions have an exceptionally similar ion radius, along with the inter-ion distance is comparatively substantial.
Significant-ability repetitively pulsed ytterbium lasers with supershort pulse width and direct diode pumping for technological and biomedical programs
Although ytterbium-doped laser gain media usually exhibit a small quantum defect, ytterbium-doped tungstates permit for specifically tiny values. By way of example, a 1030-nm Yb:YAG laser would Generally be pumped all around 940 nm, While Yb:KGW or Yb:KYW may very well be most successfully pumped all around 981 nm.
Li2WO4-WO3 flux was efficiently used reducing the growth temperature under 900 oC. According to single crystal x-ray measurements, the crystal corresponds for the P2/n Place team.
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