Top KYW Crystal Secrets

Top KYW Crystal Secrets

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The Yb-doped potassium yttrium tungstate (Yb:KYW) crystal, in comparison with its counterpart Yb:KGW, is actually a extraordinary materials that plays a significant function in laser technology. Its Key functionality will be to crank out ultrashort pulses of light, spanning just a few hundred femtoseconds.

The Yb:KYW crystal’s proficiency in light absorption at close to 981 nm would make the crystal well suited for diode pumping. It truly is further more enhanced by its exceptional effectiveness in this process, coupled with its low quantum defect.

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This paper describes a femtosecond laser regenerative amplifier based on two Yb:KYW crystals with immediate longitudinal pumping by effective linear arrays of semiconductor injection lasers possessing fiber output. To stop spectral narrowing in the course of amplification as well as the corresponding lengthening in the amplified pulse when it's compressed, a mix of two Yb:KYW crystals were made use of, Along with the spectral maxima from the amplification shifted relative to one another and with spectral profiling on the amplified radiation.

The monoclinic crystal constructions results in a all-natural birefringence, helping to avoid thermally induced polarization rotation and depolarization decline.

PDF Yb:KGW and Yb:KYW crystals have wide emission bandwidths and so are employed as lasing components to produce ultrashort (~ a hundred-200 fs) higher ability pulses. Direct pump of Yb:KGW/KYW crystals with laser diodes operating at 981 nm supports compact laser devices.

Tungstates are likely to have higher Raman coefficients (�?Raman scattering). For that reason, they will deliver sizeable Raman attain at average optical intensities. It can be done to use the laser crystal itself being a Raman converter.

For tungstates, the ytterbium doping focus can be extremely large without the need of considerable quenching as the changed ions have a really related ion radius, and the inter-ion distance is comparatively massive.

Significant-power repetitively pulsed ytterbium lasers with supershort pulse width and direct diode pumping for technological and biomedical apps

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