The Single Best Strategy To Use For KYW Crystal
The Single Best Strategy To Use For KYW Crystal
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The Yb-doped potassium yttrium tungstate (Yb:KYW) crystal, compared to its counterpart Yb:KGW, is really a amazing materials that performs a very important function in laser technology. Its Most important purpose is always to make ultrashort pulses of light, spanning just a few hundred femtoseconds.
Femtosecond laser based on Yb:KYW crystals with suppression of spectral narrowing in a very regenerative amplifier by spectral profiling of the pulse
The absorption and emission spectra of Yb:KYW Crystals Screen strong peaks at 980 nm and 1030 nm, respectively, making certain successful Power conversion and superior efficiency in laser units.
This paper describes a femtosecond laser regenerative amplifier depending on two Yb:KYW crystals with direct longitudinal pumping by strong linear arrays of semiconductor injection lasers owning fiber output. To stop spectral narrowing for the duration of amplification plus the corresponding lengthening of the amplified pulse when it really is compressed, a combination of two Yb:KYW crystals had been utilised, While using the spectral maxima of the amplification shifted relative to one another and with spectral profiling with the amplified radiation.
Before the event of Nd:YAG, Nd3+:CaWO4 was a vital exceptional-earth-doped laser obtain medium. It had been in reality used in the main consistently working crystal laser.
FIG. one. Optical format of the laser with direct pumping Together with the radiation of semiconductor injection read more lasers. LD can be an IPG Photonics laser diode with fiber output
five mm aside from the middle of your beam caustic. In an effort to Test the mode matching simulation, we carried out the experiment with Ng-Minimize crystal oscillator, which was developed previously and in a identical affliction with simulation [eleven]. As revealed in Determine three(b) with crimson dots and line, the CW output ability is very depending on the posture of laser crystal and the experimental end result coincides nicely with simulation final result. For a Observe, multimode operation transpired in experiment once the dimension from the pump beam is larger sized than TEM00 cavity manner and it causes greater CW output electrical power in the displacement area underneath 3.five mm.
For tungstates, the ytterbium doping concentration can be extremely superior without significant quenching as the changed ions have an exceptionally very similar ion radius, plus the inter-ion distance is relatively large.
By substituting yttrium with ytterbium from the crystal lattice of Yb:KYW a result of the comparable measurements of such chemical aspects up to 100% of Yb-doping may very well be obtained.
Although ytterbium-doped laser gain media frequently show a small quantum defect, ytterbium-doped tungstates permit for particularly small values. Such as, a 1030-nm Yb:YAG laser would Typically be pumped around 940 nm, While Yb:KGW or Yb:KYW might be most competently pumped close to 981 nm.
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Yb:KYW crystal (Yb-doped potassium yttrium tungstate) as compared to its counterpart Yb:KGW, is a remarkable product that plays an important role in laser technology. Its Principal perform will be to generate ultrashort pulses of light, spanning just a couple hundred femtoseconds.
Talk to RP Photonics for just about any guidance about tungstate lasers, which includes femtosecond lasers and superior-energy lasers.