Fascination About KYW Crystal
Fascination About KYW Crystal
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The Yb-doped potassium yttrium tungstate (Yb:KYW) crystal, when compared to its counterpart Yb:KGW, is actually a impressive material that performs a significant function in laser technological know-how. Its Most important perform will be to deliver ultrashort pulses of light, spanning just some hundred femtoseconds.
Femtosecond laser depending on Yb:KYW crystals with suppression of spectral narrowing inside a regenerative amplifier by spectral profiling of the pulse
FIG. 4. Autocorrelation operate of the heart beat 共a兲and spectrum 共b兲of the laser with a rectangular active aspect for an output electric power of 700 mW. The width of
By substituting yttrium with ytterbium in the crystal lattice of Yb:KYW a result of the similar dimensions of these chemical components up to one hundred% of Yb-doping can be accomplished. This special characteristic permits ytterbium to go ahead and take place of yttrium with just about no disruption towards the crystal’s lattice.
Adhesion Take a look at Compliant with MIL-C-675C navy requirements, an adhesion test associated applying a tape that fulfills LT-90 technical specs onto the lens movie layer. The tape was affixed completely and afterwards eradicated vertically. This process was carried out three times, causing no blistering or peeling.
Raman, luminescence and transmission spectra expose optical functions owing to the existence of thulium ions, and thus the materials may be further more analyzed from the scope of laser and luminescence programs.
Tungstates are likely to acquire large Raman coefficients (�?Raman scattering). Therefore, they might deliver major Raman acquire at average optical intensities. It is possible to utilize the laser crystal alone as a Raman converter.
... at fifty percent-height were being produced in the grasp oscillator with selfsynchronization with the axial modes, explained in our before posting. 21 The new version of your laser, compared with that described within our before post, utilised an Yb:KYW more info crystal with an N pcut (optical axis N p in the index ellipsoid was parallel to your propagation direction in the laser radiation), While using the polarization from the produced radiation directed alongside the N m axis.
By substituting yttrium with ytterbium inside the crystal lattice of Yb:KYW a result of the related dimensions of those chemical factors as much as one hundred% of Yb-doping may very well be attained.
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Inquire RP Photonics for any information about tungstate lasers, together with femtosecond lasers and higher-electric power lasers.