The KYW Crystal Diaries

The KYW Crystal Diaries

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The Yb-doped potassium yttrium tungstate (Yb:KYW) crystal, in comparison to its counterpart Yb:KGW, is a impressive product that performs a crucial purpose in laser technology. Its Major purpose should be to generate ultrashort pulses of light, spanning only a few hundred femtoseconds.

time. Crystals of your compound melts congruently at 1007 oC, nonetheless soften crystallization of top quality crystal is difficult as a consequence of section transition at ~920 oC. The top seeded Answer approach from

The absorption and emission spectra of Yb:KYW Crystals Show robust peaks at 980 nm and 1030 nm, respectively, ensuring efficient Vitality conversion and significant efficiency in laser units.

Ultrafast lasers, with pulse widths of a few picoseconds (ten−12 s) or a lot less, enable the time resolution demanded in laser-psyched fluorescence lifetime spectroscopy and imaging approaches.Also, they provide substantial pulse peak powers at large repetition rates and reasonable regular output powers.

The monoclinic crystal structures leads to a normal birefringence, assisting to prevent thermally induced polarization rotation and depolarization decline.

PDF Yb:KGW and Yb:KYW crystals have broad emission bandwidths and are utilized as lasing components to create ultrashort (~ one hundred-200 fs) large electricity pulses. Direct pump of Yb:KGW/KYW crystals with laser diodes working at 981 nm supports compact laser systems.

A higher brightnessQ-switched oscillator and regenerative amplifier based on a twin-crystal Yb:KGW laser

For tungstates, the ytterbium doping concentration can be quite large with out significant quenching as the replaced ions have a really similar ion radius, as well as inter-ion length is relatively significant.

However, as soon as Nd3+:YAG became commercially obtainable, the fascination in CaWO4 dropped sharply. In later on yrs, sure other tungstate crystals began to attract a lot of interest.

Though ytterbium-doped laser obtain media generally exhibit a little quantum defect, ytterbium-doped tungstates permit for significantly small values. As an example, a 1030-nm Yb:YAG laser would Ordinarily be pumped close to 940 nm, While Yb:KGW or Yb:KYW could be most proficiently pumped all over 981 nm.

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