Getting My KYW Crystal To Work

Getting My KYW Crystal To Work

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The Yb-doped potassium yttrium tungstate (Yb:KYW) crystal, when compared to its counterpart Yb:KGW, is actually a exceptional materials that performs an important part in laser know-how. Its Most important operate is usually to create ultrashort pulses of light, spanning only a few hundred femtoseconds.

The Yb:KYW crystal’s proficiency in light-weight absorption at around 981 nm helps make the crystal well matched for diode pumping. It really is further more Increased by its exceptional efficiency in this process, coupled with its reduced quantum defect.

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This paper describes a femtosecond laser regenerative amplifier based upon two Yb:KYW crystals with immediate longitudinal pumping by impressive linear arrays of semiconductor injection lasers obtaining fiber output. To circumvent spectral narrowing for the duration of amplification and the corresponding lengthening of the amplified pulse when it is actually compressed, a combination of two Yb:KYW crystals were applied, Together with the spectral maxima from the amplification shifted relative to each other and with spectral profiling in the amplified radiation.

Adhesion Check Compliant with MIL-C-675C armed service benchmarks, an adhesion test concerned applying a tape that meets LT-90 technical specs on to the lens film layer. The tape was affixed fully then removed vertically. This process was performed 3 website times, leading to no blistering or peeling.

Raman, luminescence and transmission spectra expose optical options owing on the presence of thulium ions, and so the resources may be further analyzed in the scope of laser and luminescence applications.

Spatial framework of the beam as well as corresponding depth profiles I at the output with the laser.

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By substituting yttrium with ytterbium while in the crystal lattice of Yb:KYW due to very similar dimensions of these chemical elements up to a hundred% of Yb-doping might be achieved.

Though ytterbium-doped laser achieve media usually exhibit a little quantum defect, ytterbium-doped tungstates allow for specially smaller values. For example, a 1030-nm Yb:YAG laser would normally be pumped all-around 940 nm, whereas Yb:KGW or Yb:KYW can be most competently pumped all over 981 nm.

This tandem of characteristics has much-reaching implications, especially in the development of compact however powerfull lasers.

Yb:KYW crystal (Yb-doped potassium yttrium tungstate) in comparison with its counterpart Yb:KGW, can be a exceptional product that performs a vital part in laser technologies. Its Key perform is to deliver ultrashort pulses of sunshine, spanning just a couple hundred femtoseconds.

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