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The Yb-doped potassium yttrium tungstate (Yb:KYW) crystal, as compared to its counterpart Yb:KGW, is usually a impressive content that plays an important part in laser know-how. Its Most important function is usually to crank out ultrashort pulses of sunshine, spanning just a couple hundred femtoseconds.
We current a dual-crystal Yb:KGW laserthat iscapable to work being a Q-switched oscillator with output power as much as 24 W and pulse duration of 20 ns,or as a regenerative amplifier with output electricity around 21 W and pulse length below 200 fs immediately after compression of chirped pulses. Both of those lasers have great beam quality with beam parameter M2
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This paper describes a femtosecond laser regenerative amplifier determined by two Yb:KYW crystals with direct longitudinal pumping by effective linear arrays of semiconductor injection lasers obtaining fiber output. To avoid spectral narrowing for the duration of amplification along with the corresponding lengthening in the amplified pulse when it's compressed, a mix of two Yb:KYW crystals had been utilized, Along with the spectral maxima in the amplification shifted relative to one another and with spectral profiling in the amplified radiation.
Following air drying and subsequent cleansing with a cotton cloth soaked in Alcoholic beverages, the film floor confirmed no signs of peeling or scratches.
Raman, luminescence and transmission spectra reveal optical attributes owing on the existence of thulium ions, and as a consequence the materials might be more researched inside the scope of laser and luminescence programs.
five mm other than the center on the beam caustic. In an effort to Check out the mode matching simulation, we done the experiment with Ng-Lower crystal oscillator, which was created previously As well as in a similar issue with simulation [11]. As revealed in Figure three(b) with purple dots and line, the CW output electrical power is very dependent on the position of laser crystal as well as experimental end result coincides properly with simulation final result. Being a Take note, multimode operation happened in experiment once the sizing from the pump beam is much larger than TEM00 cavity manner and it leads to increased CW output ability within the displacement area under three.five mm.
For tungstates, the ytterbium doping concentration can be very large without the need of significant quenching since the changed ions have a very equivalent ion radius, plus the inter-ion length is relatively big.
Higher-electric power repetitively pulsed ytterbium lasers with supershort pulse width and direct diode pumping for technological and here biomedical applications
Although ytterbium-doped laser achieve media commonly show a little quantum defect, ytterbium-doped tungstates allow for especially little values. As an example, a 1030-nm Yb:YAG laser would Typically be pumped close to 940 nm, whereas Yb:KGW or Yb:KYW might be most effectively pumped around 981 nm.
Li2WO4-WO3 flux was successfully applied minimizing The expansion temperature down below 900 oC. Based on single crystal x-ray measurements, the crystal corresponds for the P2/n Room team.
Yb:KYW crystal (Yb-doped potassium yttrium tungstate) as compared to its counterpart Yb:KGW, is really a outstanding material that performs a very important purpose in laser know-how. Its Principal operate would be to deliver ultrashort pulses of sunshine, spanning just a few hundred femtoseconds.
Talk to RP Photonics for any advice regarding tungstate lasers, together with femtosecond lasers and substantial-ability lasers.