KYW Crystal - An Overview

KYW Crystal - An Overview

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The attain bandwidth e.g. of Yb:KGW and Yb:KYW is quite significant compared with that of Yb:YAG. This enables for broad wavelength tunability and for Considerably shorter pulse durations from manner-locked lasers. Values perfectly below one hundred fs are achieved with passive manner locking.

The comparison with glasses is acceptable Considering that the substantial achieve bandwidth permits e.g. tungstate femtosecond lasers and tunable lasers to contend with glass lasers.

The Yb:KYW crystal’s proficiency in gentle absorption at around 981 nm helps make the crystal compatible for diode pumping. It is actually additional enhanced by its amazing performance in this method, coupled with its minimal quantum defect.

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By substituting yttrium with ytterbium while in the crystal lattice of Yb:KYW due to the equivalent measurements of those chemical things nearly a hundred% of Yb-doping could be achieved. This distinctive characteristic permits ytterbium to take the place of yttrium with virtually no disruption to the crystal’s lattice.

The monoclinic crystal structures results in a pure birefringence, assisting to prevent thermally induced polarization rotation and depolarization reduction.

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Tungstates are click here likely to have large Raman coefficients (�?Raman scattering). Thus, they might generate substantial Raman acquire at moderate optical intensities. It is possible to utilize the laser crystal itself as being a Raman converter.

For tungstates, the ytterbium doping focus can be extremely large without considerable quenching as the changed ions have an extremely very similar ion radius, and the inter-ion distance is comparatively substantial.

By substituting yttrium with ytterbium from the crystal lattice of Yb:KYW due to comparable sizes of those chemical factors as much as a hundred% of Yb-doping may be accomplished.

The thermal conductivity of typical double tungstates is with the purchase to three–4 W/(K m) �?which isn't negative in comparison with other laser crystals (although various occasions a lot less than for YAG), and pretty substantial compared Together with the thermal conductivity of typical glasses.

Li2WO4-WO3 flux was productively used decreasing the growth temperature under 900 oC. According to single crystal x-ray measurements, the crystal corresponds for the P2/n Room team.

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