KYW Crystal - An Overview
KYW Crystal - An Overview
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The achieve bandwidth e.g. of Yb:KGW and Yb:KYW may be very massive as opposed with that of Yb:YAG. This allows for vast wavelength tunability and for Substantially shorter pulse durations from manner-locked lasers. Values well beneath one hundred fs are actually achieved with passive mode locking.
The Yb-doped potassium yttrium tungstate (Yb:KYW) crystal, compared to its counterpart Yb:KGW, is really a exceptional material that plays an important part in laser technological know-how. Its primary function will be to crank out ultrashort pulses of sunshine, spanning only a few hundred femtoseconds.
Femtosecond laser determined by Yb:KYW crystals with suppression of spectral narrowing in a regenerative amplifier by spectral profiling of the pulse
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By substituting yttrium with ytterbium during the crystal lattice of Yb:KYW as a result of very similar measurements of such chemical elements around a hundred% of Yb-doping could possibly be attained. This distinctive attribute permits ytterbium to go ahead and take location of yttrium with just about no disruption towards the crystal’s lattice.
Just before the event of Nd:YAG, Nd3+:CaWO4 was a very important exceptional-earth-doped laser gain medium. It was in truth Employed in the very first repeatedly functioning crystal laser.
FIG. 1. Optical structure of a laser with immediate pumping While using the radiation of semiconductor injection lasers. LD is really an IPG Photonics laser diode with fiber output
5 mm other than the center with the beam caustic. So that you can Examine the mode matching simulation, we performed the experiment with Ng-Lower crystal oscillator, which was created Earlier As well as in a identical ailment with simulation [11]. As proven in Determine three(b) with red dots and line, the CW output electric power is very dependent on the place of laser crystal along with the experimental final result coincides very well with simulation final result. As being a Notice, multimode operation transpired in experiment if the dimensions of your pump beam is larger than TEM00 cavity mode and it leads to increased CW output power inside the displacement area down below three.five mm.
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On the other hand, the moment Nd3+:YAG turned commercially accessible, the curiosity in CaWO4 dropped sharply. In later on decades, particular other tungstate crystals started to appeal to many notice.
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Yb:KYW crystal (Yb-doped potassium yttrium tungstate) compared to its counterpart Yb:KGW, is really a outstanding substance that performs a vital part in laser technological innovation. Its Principal perform is to deliver ultrashort pulses of light, spanning just a few hundred femtoseconds.
Talk to RP Photonics for virtually any tips relating to tungstate lasers, including femtosecond lasers and significant-electricity lasers.