KYW Crystal Options
KYW Crystal Options
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The Yb-doped potassium yttrium tungstate (Yb:KYW) crystal, as compared to its counterpart Yb:KGW, is usually a impressive materials that plays a significant position in laser technological know-how. Its Main purpose is to deliver ultrashort pulses of sunshine, spanning just some hundred femtoseconds.
The Yb:KYW crystal’s proficiency in mild absorption at all over 981 nm makes the crystal like minded for diode pumping. It can be even further enhanced by its extraordinary effectiveness in this method, coupled with its lower quantum defect.
FIG. four. Autocorrelation operate of the heart beat 共a兲and spectrum 共b兲of a laser with an oblong active aspect for an output energy of seven hundred mW. The width of
Ultrafast lasers, with pulse widths of a few picoseconds (ten−12 s) or fewer, empower the time resolution needed in laser-energized fluorescence life span spectroscopy and imaging tactics.Additionally, they deliver high pulse peak powers at substantial repetition prices and average average output powers.
Adhesion Check Compliant with MIL-C-675C navy criteria, an adhesion test involved applying a tape that meets LT-ninety requirements on to the lens movie layer. The tape was affixed thoroughly after which you can taken off vertically. This course of action was executed thrice, causing no blistering or peeling.
FIG. one. Optical structure of the laser with immediate pumping with the radiation of semiconductor injection lasers. LD is really an IPG Photonics laser diode with fiber output
A higher brightnessQ-switched oscillator and regenerative amplifier according to a dual-crystal Yb:KGW laser
For tungstates, the ytterbium doping concentration can be quite higher without the need of important quenching because the changed ions have an extremely comparable ion radius, as well as inter-ion distance is comparatively significant.
By substituting yttrium with ytterbium in the crystal lattice of Yb:KYW a result of the related sizes of those chemical features as much as a hundred% of Yb-doping can be obtained.
Although ytterbium-doped laser attain media generally exhibit a little quantum defect, ytterbium-doped tungstates allow for for significantly tiny click here values. For example, a 1030-nm Yb:YAG laser would Generally be pumped close to 940 nm, Whilst Yb:KGW or Yb:KYW might be most efficiently pumped close to 981 nm.
This tandem of attributes has significantly-reaching implications, notably in the construction of compact nonetheless powerfull lasers.
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Request RP Photonics for virtually any suggestions concerning tungstate lasers, like femtosecond lasers and higher-power lasers.