Helping The others Realize The Advantages Of KYW Crystal
Helping The others Realize The Advantages Of KYW Crystal
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The comparison with glasses is acceptable For the reason that significant gain bandwidth enables e.g. tungstate femtosecond lasers and tunable lasers to compete with glass lasers.
We current a dual-crystal Yb:KGW laserthat iscapable to function to be a Q-switched oscillator with output power as much as 24 W and pulse size of twenty ns,or to be a regenerative amplifier with output power nearly 21 W and pulse duration beneath 200 fs following compression of chirped pulses. Equally lasers have fantastic beam top quality with beam parameter M2
Color-coded reflectivity of the Bragg mirror as a function of wavelength and angle on the incident beam.
By substituting yttrium with ytterbium within the crystal lattice of Yb:KYW mainly because of the similar measurements of those chemical things approximately one hundred% of Yb-doping may very well be obtained. This exceptional characteristic permits ytterbium to go ahead and take location of yttrium with nearly no disruption for the crystal’s lattice.
Ahead of the development of Nd:YAG, Nd3+:CaWO4 was an important uncommon-earth-doped laser obtain medium. It had been in truth Utilized in the very first repeatedly running crystal laser.
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Tungstates are likely to possess significant Raman coefficients (�?Raman scattering). Hence, they will create major Raman obtain at moderate optical intensities. It can be done to make use of the laser crystal by itself like a Raman converter.
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... Not merely the placement of crystal inside the cavity but additionally the amplification axis of crystal has an effect on the laser Procedure greatly, since the absorption and emission cross sections in the crystal are pretty various in accordance with the orientation with the crystal.
The thermal conductivity of common double tungstates is in the purchase to 3–4 W/(K m) �?which is not lousy in contrast with other laser crystals (While quite a few situations a lot less than for YAG), and rather large in comparison With all the thermal conductivity of standard glasses.
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