A Simple Key For KYW Crystal Unveiled
A Simple Key For KYW Crystal Unveiled
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In useful conditions, the Yb:KYW crystal has discovered its area of interest in higher-electricity laser purposes as a result of its capability to create higher Power ultrashort laser pulses whilst preserving a compact measurement. The interplay of its characteristics �?seamless ytterbium substitution, solid absorption features, ultrashort pulse era and effectiveness in Power conversion �?positions the Yb:KYW crystal as being a cornerstone in the laser technologies, masking assorted fields ranging from scientific research to industrial apps.
The comparison with Eyeglasses is acceptable For the reason that large achieve bandwidth enables e.g. tungstate femtosecond lasers and tunable lasers to contend with glass lasers.
time. Crystals on the compound melts congruently at 1007 oC, nevertheless melt crystallization of top of the range crystal is impossible because of phase changeover at ~920 oC. The very best seeded Answer technique from
Shade-coded reflectivity of the Bragg mirror like a functionality of wavelength and angle of the incident beam.
Optical format of a laser with immediate pumping While using the radiation of semiconductor injection lasers. LD can be an IPG Photonics laser diode with fiber output of your radiation, WP is often a half-wave plate, CL is usually a collimating lens, FL is often a focusing lens, AE is definitely an Lively factor created from an Yb:KYW crystal, DM is actually a spherical dichroic mirror, M1-M6 would be the cavity mirrors, OC is the output mirror, and SAM is often a semiconductor saturable-absorber mirror.
The monoclinic crystal structures brings about a organic birefringence, helping to steer clear of thermally induced polarization rotation and depolarization loss.
Raman, luminescence and transmission spectra expose optical functions owing to your existence of thulium ions, and therefore the resources could possibly be additional analyzed during the scope of laser and luminescence apps.
five mm aside from the middle in the beam caustic. As a way to Verify the method matching simulation, we executed the experiment with Ng-Slice crystal oscillator, which was developed Formerly As well as in a same affliction with simulation [eleven]. As proven in Determine three(b) with red dots and line, the CW output electric power is highly dependent on the situation of laser crystal and the experimental end result coincides perfectly with simulation result. Being a Notice, multimode Procedure occurred in experiment in the event the dimension here on the pump beam is more substantial than TEM00 cavity manner and it causes bigger CW output electricity in the displacement area beneath 3.five mm.
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... Not just the place of crystal within the cavity but will also the amplification axis of crystal has an effect on the laser Procedure tremendously, since the absorption and emission cross sections on the crystal are quite distinctive based on the orientation in the crystal.
While ytterbium-doped laser attain media frequently exhibit a little quantum defect, ytterbium-doped tungstates permit for especially smaller values. One example is, a 1030-nm Yb:YAG laser would Ordinarily be pumped close to 940 nm, Whilst Yb:KGW or Yb:KYW could possibly be most effectively pumped all over 981 nm.
This tandem of characteristics has considerably-achieving implications, specially in the construction of compact nevertheless powerfull lasers.
The polarized absorption spectra of Tm3+-doped potassium yttrium tungstate (Tm:KY(WO4)two) crystal at room temperature ended up measured. The emission spectrum and life time of the 3 File 4 energized state ended up determined. Employing standard and modified Judd–Ofelt theories, the intensity parameters as well as radiative lifetimes had been calculated and fantastic agreement Together with the experimental results was received for each theories.
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