Considerations To Know About KYW Crystal
Considerations To Know About KYW Crystal
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The attain bandwidth e.g. of Yb:KGW and Yb:KYW is incredibly huge as opposed with that of Yb:YAG. This permits for broad wavelength tunability and for Significantly shorter pulse durations from mode-locked lasers. Values very well below 100 fs have been attained with passive method locking.
The comparison with glasses is acceptable For the reason that massive obtain bandwidth enables e.g. tungstate femtosecond lasers and tunable lasers to compete with glass lasers.
We existing a twin-crystal Yb:KGW laserthat iscapable to work as being a Q-switched oscillator with output electricity as many as 24 W and pulse duration of twenty ns,or being a regenerative amplifier with output electric power as many as 21 W and pulse length under 200 fs soon after compression of chirped pulses. Equally lasers have exceptional beam good quality with beam parameter M2
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By substituting yttrium with ytterbium while in the crystal lattice of Yb:KYW because of the related dimensions of such chemical components around one hundred% of Yb-doping may be realized. This exceptional characteristic permits ytterbium to take the location of yttrium with nearly no disruption for the crystal’s lattice.
The monoclinic crystal constructions leads to a all-natural birefringence, assisting to stay away from thermally induced polarization rotation and depolarization reduction.
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5 mm other than the middle on the beam caustic. To be able to Check out the manner matching simulation, we performed the experiment with Ng-Lower crystal oscillator, which was made previously As well as in a same condition with simulation [eleven]. As demonstrated in Figure three(b) with crimson dots and line, the CW output electric power is extremely depending on the situation of laser crystal as well as experimental consequence coincides properly with simulation final result. As being a Be aware, multimode operation happened in experiment in the event the measurement of your pump beam is bigger than TEM00 cavity method and it triggers increased CW output electric power within the displacement area under three.5 mm.
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By substituting yttrium with ytterbium in the crystal lattice of Yb:KYW because of the comparable dimensions of those chemical aspects around 100% of Yb-doping can be realized.
The thermal conductivity of prevalent double tungstates is in the order to three–4 W/(K m) �?which is not bad as opposed with other laser crystals (Despite the fact that a number of periods under for YAG), and quite huge as opposed Together with the thermal conductivity of typical glasses.
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