Fascination About KYW Crystal
Fascination About KYW Crystal
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The Yb-doped potassium yttrium tungstate (Yb:KYW) crystal, as compared to its counterpart Yb:KGW, is really a extraordinary materials that performs a significant job in laser technological innovation. Its primary purpose is to create ultrashort pulses of sunshine, spanning just some hundred femtoseconds.
Femtosecond laser based upon Yb:KYW crystals with suppression of spectral narrowing in a very regenerative amplifier by spectral profiling of the pulse
FIG. 4. Autocorrelation operate of the pulse 共a兲and spectrum 共b兲of the laser with a rectangular active aspect for an output power of 700 mW. The width of
By substituting yttrium with ytterbium while in the crystal lattice of Yb:KYW due to the similar measurements of these chemical things as much as one hundred% of Yb-doping could be achieved. This exceptional attribute permits ytterbium to go ahead and take place of yttrium with almost no disruption into the crystal’s lattice.
Adhesion Check Compliant with MIL-C-675C military criteria, an adhesion test concerned applying a tape that satisfies LT-ninety technical specs on to the lens movie layer. The tape was affixed fully then taken off vertically. This course of action was performed three times, resulting in no blistering or peeling.
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Tungstates tend to own superior Raman coefficients (�?Raman scattering). As a result, they might produce considerable Raman get at reasonable optical intensities. It is achievable to utilize the laser crystal itself being a Raman converter.
... at 50 %-top were being created in a very grasp oscillator with selfsynchronization on the axial modes, described in our earlier article. 21 The new edition from the laser, in contrast to that explained within our earlier posting, applied an Yb:KYW crystal having an N pcut (optical axis N p on the index ellipsoid was parallel to the propagation course in the laser radiation), Using the polarization of your generated radiation directed together the N m axis.
Higher-ability repetitively pulsed ytterbium lasers with supershort pulse width and direct diode pumping for technological and biomedical apps
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This tandem of attributes has far-achieving implications, significantly in the construction of compact yet powerfull lasers.
The polarized absorption spectra of Tm3+-doped potassium yttrium tungstate (Tm:KY(WO4)2) crystal at room temperature ended up measured. The emission spectrum and life span of the three F four enthusiastic state were being identified. Working with typical and modified Judd–Ofelt theories, the intensity parameters and the radiative lifetimes were being calculated and superior settlement with the experimental effects was acquired for both equally theories.
Question RP Photonics for almost any tips concerning tungstate lasers, which include femtosecond lasers and superior-ability lasers.