An Unbiased View of KYW Crystal
An Unbiased View of KYW Crystal
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We current a dual-crystal Yb:KGW laserthat iscapable to function as a Q-switched oscillator with output energy around 24 W and pulse duration of 20 ns,or like a regenerative amplifier with output electricity as much as 21 W and pulse duration below 200 fs soon after compression of chirped pulses. Equally lasers have excellent beam high quality with beam parameter M2
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This paper describes a femtosecond laser regenerative amplifier based upon two Yb:KYW crystals with direct longitudinal pumping by effective linear arrays of semiconductor injection lasers possessing fiber output. To stop spectral narrowing during amplification and the corresponding lengthening of your amplified pulse when it can be compressed, a combination of two Yb:KYW crystals were being utilised, Together with the spectral maxima from the amplification shifted relative to one another and with spectral profiling from the amplified radiation.
Just after air drying and subsequent cleansing which has a cotton cloth soaked in Alcoholic beverages, the film surface area confirmed no indications of peeling or scratches.
PDF Yb:KGW and Yb:KYW crystals have wide emission bandwidths and therefore are employed as lasing supplies to produce ultrashort (~ a hundred-200 fs) higher power pulses. Immediate pump of Yb:KGW/KYW crystals with laser diodes operating at 981 nm supports compact laser devices.
5 mm aside from the middle of your beam caustic. So that you can Test the mode matching simulation, we performed the experiment with Ng-Slice crystal oscillator, which was formulated Formerly As well as in a exact issue with simulation [11]. As demonstrated in Figure three(b) with red dots and line, the CW output ability is extremely depending on the place of laser crystal as well as experimental consequence coincides nicely with simulation consequence. As being a Observe, multimode Procedure occurred in experiment if the sizing in the pump beam is much larger than TEM00 cavity mode and it brings about greater CW output electric power in the displacement region under 3.5 mm.
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By substituting yttrium with ytterbium while in the crystal lattice of Yb:KYW as a result of identical measurements of those chemical components nearly 100% of Yb-doping can be reached.
Though ytterbium-doped laser gain media typically exhibit a small quantum defect, ytterbium-doped tungstates permit for specifically tiny values. By way of example, a 1030-nm Yb:YAG laser here would Commonly be pumped all over 940 nm, While Yb:KGW or Yb:KYW may be most proficiently pumped about 981 nm.
This tandem of attributes has significantly-achieving implications, especially in the development of compact nonetheless powerfull lasers.
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