Getting My KYW Crystal To Work
Getting My KYW Crystal To Work
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The acquire bandwidth e.g. of Yb:KGW and Yb:KYW may be very huge compared with that of Yb:YAG. This enables for broad wavelength tunability and for Significantly shorter pulse durations from mode-locked lasers. Values perfectly underneath 100 fs are actually attained with passive mode locking.
The Yb-doped potassium yttrium tungstate (Yb:KYW) crystal, when compared with its counterpart Yb:KGW, is a amazing product that performs an important role in laser engineering. Its Principal functionality should be to make ultrashort pulses of light, spanning just some hundred femtoseconds.
Femtosecond laser according to Yb:KYW crystals with suppression of spectral narrowing in a regenerative amplifier by spectral profiling of the pulse
FIG. 4. Autocorrelation perform of the heart beat 共a兲and spectrum 共b兲of a laser with a rectangular Energetic component for an output energy of seven-hundred mW. The width of
Optical structure of the laser with immediate pumping with the radiation of semiconductor injection lasers. LD is surely an IPG Photonics laser diode with fiber output in the radiation, WP is actually a 50 %-wave plate, CL is usually a collimating lens, FL is often a concentrating lens, AE is an active element produced from an Yb:KYW crystal, DM can be a spherical dichroic mirror, M1-M6 tend to be the cavity mirrors, OC is the output mirror, and SAM is actually a click here semiconductor saturable-absorber mirror.
Immediately after air drying and subsequent cleansing by using a cotton cloth soaked in Alcoholic beverages, the movie surface area confirmed no indications of peeling or scratches.
Raman, luminescence and transmission spectra expose optical features owing on the existence of thulium ions, and for that reason the materials may be further researched in the scope of laser and luminescence apps.
Tungstates have a tendency to get high Raman coefficients (�?Raman scattering). Therefore, they could crank out sizeable Raman acquire at reasonable optical intensities. It is achievable to use the laser crystal by itself to be a Raman converter.
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By substituting yttrium with ytterbium in the crystal lattice of Yb:KYW because of the similar measurements of such chemical things approximately a hundred% of Yb-doping might be realized.
Although ytterbium-doped laser obtain media generally show a little quantum defect, ytterbium-doped tungstates make it possible for for especially tiny values. By way of example, a 1030-nm Yb:YAG laser would Ordinarily be pumped all over 940 nm, whereas Yb:KGW or Yb:KYW could be most efficiently pumped close to 981 nm.
Li2WO4-WO3 flux was successfully applied cutting down the growth temperature under 900 oC. In accordance with solitary crystal x-ray measurements, the crystal corresponds towards the P2/n Area team.
The polarized absorption spectra of Tm3+-doped potassium yttrium tungstate (Tm:KY(WO4)2) crystal at home temperature ended up measured. The emission spectrum and life span of the three F four thrilled point out have been identified. Making use of standard and modified Judd–Ofelt theories, the depth parameters and also the radiative lifetimes ended up calculated and excellent settlement With all the experimental results was received for both of those theories.
Talk to RP Photonics for any advice concerning tungstate lasers, which includes femtosecond lasers and higher-electric power lasers.