KYW Crystal - An Overview
KYW Crystal - An Overview
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The Yb-doped potassium yttrium tungstate (Yb:KYW) crystal, in comparison with its counterpart Yb:KGW, is often a extraordinary materials that plays a crucial position in laser know-how. Its Key purpose will be to generate ultrashort pulses of light, spanning just a few hundred femtoseconds.
time. Crystals of your compound melts congruently at 1007 oC, however soften crystallization of high quality crystal is impossible due to period changeover at ~920 oC. The highest seeded Resolution technique from
The absorption and emission spectra of Yb:KYW Crystals display powerful peaks at 980 nm and 1030 nm, respectively, making certain productive Strength conversion and significant general performance in laser units.
Ultrafast lasers, with pulse widths of a few picoseconds (ten−twelve s) or a lot less, permit time resolution necessary in laser-thrilled fluorescence lifetime spectroscopy and imaging procedures.What's more, they supply large pulse peak powers at higher repetition fees and moderate ordinary output powers.
The monoclinic crystal structures ends in a all-natural birefringence, assisting to avoid thermally induced polarization rotation and depolarization decline.
FIG. 1. Optical format of a laser with direct pumping With all the radiation of semiconductor injection lasers. LD is surely an IPG Photonics laser diode with fiber output
A substantial brightnessQ-switched oscillator and regenerative amplifier determined by a dual-crystal Yb:KGW laser
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By substituting yttrium with ytterbium during the crystal lattice of Yb:KYW mainly because of the very similar measurements of these chemical things approximately 100% of Yb-doping might be obtained.
The thermal conductivity of popular double tungstates is on the order to 3–four W/(K m) �?which is not terrible in contrast with other laser crystals (Whilst many times below for YAG), and fairly massive compared Together with the thermal conductivity of usual glasses.
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