The 5-Second Trick For KYW Crystal
The 5-Second Trick For KYW Crystal
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The Yb-doped potassium yttrium tungstate (Yb:KYW) crystal, in comparison to its counterpart Yb:KGW, is often a extraordinary material that performs an important function in laser technological innovation. Its Principal operate is usually to deliver ultrashort pulses of sunshine, spanning only a few hundred femtoseconds.
We current a twin-crystal Yb:KGW laserthat iscapable to work as a Q-switched oscillator with output electrical power as many as 24 W and pulse length of twenty ns,or as being a regenerative amplifier with output electricity as many as 21 W and pulse length under 200 fs right after compression of chirped pulses. Each lasers have superb beam quality with beam parameter M2
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This paper describes a femtosecond laser regenerative amplifier dependant on two Yb:KYW crystals with immediate longitudinal pumping by highly effective linear arrays of semiconductor injection lasers obtaining fiber output. To avoid spectral narrowing in the course of amplification and also the corresponding lengthening of the amplified pulse when it can be compressed, a mix of two Yb:KYW crystals were made use of, Along with the spectral maxima in the amplification shifted relative to one another and with spectral profiling in the amplified radiation.
Adhesion Examination Compliant with MIL-C-675C army standards, an adhesion examination concerned making use of a tape that fulfills LT-90 specs onto the lens film layer. The tape was affixed totally after which taken out vertically. This treatment was carried out three times, resulting in no blistering or peeling.
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5 mm other than the center in the beam caustic. As a way to Examine the mode matching simulation, we executed the experiment with Ng-Slash crystal oscillator, which was made Earlier and in a exact same condition with simulation [11]. As shown in Determine three(b) with crimson dots and line, the CW output energy is extremely dependent on the placement of laser crystal and also the experimental final result coincides effectively with simulation final result. Like a Observe, multimode Procedure happened in experiment in the event the size with the pump beam is bigger than TEM00 cavity method and it leads to better CW output energy while in the displacement location below 3.5 mm.
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By substituting yttrium with ytterbium from the crystal lattice of Yb:KYW due to related sizes of such chemical things around 100% of Yb-doping may very well be reached.
When ytterbium-doped laser attain media generally exhibit a little quantum defect, ytterbium-doped tungstates permit for especially little values. Such as, a 1030-nm Yb:YAG laser would Commonly be pumped all around 940 nm, whereas Yb:KGW or Yb:KYW might be most efficiently pumped around 981 nm.
Li2WO4-WO3 flux was successfully applied minimizing The expansion temperature down below 900 oC. In keeping with single crystal x-ray measurements, the crystal corresponds for the P2/n Place team.
Yb:KYW crystal (Yb-doped potassium yttrium tungstate) when compared with its counterpart Yb:KGW, is often a amazing substance that plays a significant job in laser technology. Its Most important purpose is usually to create ultrashort pulses of light, spanning just a couple hundred femtoseconds.
Request RP Photonics for any tips concerning tungstate lasers, which include femtosecond lasers and higher-electric check here power lasers.