Considerations To Know About KYW Crystal
Considerations To Know About KYW Crystal
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In sensible terms, the Yb:KYW crystal has observed its area of interest in significant-ability laser purposes as a result of its capability to deliver higher Electrical power ultrashort laser pulses when retaining a compact dimensions. The interaction of its characteristics �?seamless ytterbium substitution, robust absorption traits, ultrashort pulse technology and performance in Electricity conversion �?positions the Yb:KYW crystal to be a cornerstone from the laser technologies, masking numerous fields starting from scientific investigate to industrial apps.
The comparison with glasses is appropriate Because the significant obtain bandwidth permits e.g. tungstate femtosecond lasers and tunable lasers to compete with glass lasers.
We existing a dual-crystal Yb:KGW laserthat iscapable to work to be a Q-switched oscillator with output electricity as much as 24 W and pulse length of twenty ns,or for a regenerative amplifier with output power as much as 21 W and pulse duration below two hundred fs soon after compression of chirped pulses. Both equally lasers have outstanding beam excellent with beam parameter M2
FIG. 4. Autocorrelation purpose of the heartbeat 共a兲and spectrum 共b兲of a laser with an oblong active component for an output power of seven-hundred mW. The width of
By substituting yttrium with ytterbium within the crystal lattice of Yb:KYW as a result of identical sizes of those chemical aspects up to one hundred% of Yb-doping could be accomplished. This special characteristic permits ytterbium to go ahead and take position of yttrium with virtually no disruption to your crystal’s lattice.
After air drying and subsequent cleansing by using a cotton cloth soaked in Alcoholic beverages, the film floor showed no signs of peeling or scratches.
FIG. 1. Optical structure of the laser KYW Crystal with direct pumping with the radiation of semiconductor injection lasers. LD is surely an IPG Photonics laser diode with fiber output
5 mm apart from the center of the beam caustic. In an effort to Examine the method matching simulation, we carried out the experiment with Ng-Reduce crystal oscillator, which was designed Formerly and in a exact same condition with simulation [eleven]. As demonstrated in Determine 3(b) with purple dots and line, the CW output electrical power is very dependent on the placement of laser crystal plus the experimental consequence coincides properly with simulation end result. As being a note, multimode Procedure happened in experiment in the event the measurement of the pump beam is greater than TEM00 cavity method and it will cause bigger CW output electricity inside the displacement area beneath three.5 mm.
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By substituting yttrium with ytterbium within the crystal lattice of Yb:KYW mainly because of the equivalent measurements of such chemical components approximately 100% of Yb-doping could be reached.
When ytterbium-doped laser get media typically exhibit a small quantum defect, ytterbium-doped tungstates enable for especially 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 could possibly be most competently pumped all-around 981 nm.
This tandem of characteristics has far-reaching implications, particularly in the construction of compact yet powerfull lasers.
Yb:KYW crystal (Yb-doped potassium yttrium tungstate) in comparison to its counterpart Yb:KGW, is actually a impressive content that performs a very important purpose in laser technological know-how. Its Major perform would be to generate ultrashort pulses of light, spanning just some hundred femtoseconds.
Concurrently, a shorter laser wavelength may be obtained; it is achievable to operate which has a quantum defect properly beneath 1%. Like a consequence, the warmth era can be so little this partly compensates the decrease thermal conductivity.