Rumored Buzz on KYW Crystal
Rumored Buzz on KYW Crystal
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The Yb-doped potassium yttrium tungstate (Yb:KYW) crystal, in comparison to its counterpart Yb:KGW, is actually a exceptional material that performs an important role in laser know-how. Its primary function will be to generate ultrashort pulses of sunshine, spanning just some hundred femtoseconds.
time. Crystals of your compound melts congruently at 1007 oC, having said that melt crystallization of top quality crystal is unattainable on account of section changeover at ~920 oC. The highest seeded Answer approach from
The absorption and emission spectra of Yb:KYW Crystals Screen potent peaks at 980 nm and 1030 nm, respectively, making certain effective energy conversion and high performance in laser devices.
By substituting yttrium with ytterbium during the crystal lattice of Yb:KYW mainly because of the very similar measurements of these chemical features nearly one hundred% of Yb-doping could possibly be accomplished. This unique attribute permits ytterbium to take the place of yttrium with just about no disruption for the crystal’s lattice.
Soon after air drying and subsequent cleansing using a cotton fabric soaked in alcohol, the film floor showed no signs of peeling or scratches.
FIG. one. Optical layout of a laser with direct pumping Together with the radiation of semiconductor injection lasers. LD is definitely an IPG Photonics laser diode with fiber output
Tungstates tend to obtain substantial Raman coefficients (�?Raman scattering). As a result, they can generate important Raman get at reasonable optical intensities. It is feasible to make use of the laser crystal itself as being a Raman converter.
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By substituting yttrium with ytterbium in the crystal lattice of Yb:KYW as a result of equivalent dimensions of those chemical elements nearly 100% of Yb-doping may very well be obtained.
The thermal conductivity of common double tungstates is on the order to three–four W/(K m) �?which isn't bad in contrast with other laser crystals (although various situations fewer than for YAG), and rather massive in comparison Using the thermal conductivity of typical Eyeglasses.
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