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 outstanding substance that performs a very important role in laser technology. Its Principal functionality is always to generate ultrashort pulses of sunshine, spanning only a few hundred femtoseconds.
The Yb:KYW crystal’s proficiency in mild absorption at close to 981 nm will make the crystal like minded for diode pumping. It is even further Increased by its remarkable performance in this process, coupled with its minimal quantum defect.
The absorption and emission spectra of Yb:KYW Crystals Screen strong peaks at 980 nm and 1030 nm, respectively, making certain successful energy conversion and significant overall performance in laser techniques.
Ultrafast lasers, with pulse widths of some picoseconds (10−twelve s) or fewer, enable some time resolution needed in laser-energized fluorescence life time spectroscopy and imaging strategies.Additionally, they produce superior pulse peak powers at high repetition prices and moderate typical output powers.
Ahead of the development of Nd:YAG, Nd3+:CaWO4 was an important uncommon-earth-doped laser attain medium. It had been actually Employed in the main constantly functioning crystal laser.
FIG. one. Optical structure of the laser with immediate pumping with the radiation of semiconductor injection lasers. LD is definitely an IPG Photonics laser diode with fiber output
Tungstates have a tendency to have significant Raman coefficients (�?Raman scattering). For that reason, they could generate substantial Raman attain at reasonable optical intensities. It is achievable to use the laser crystal itself like a Raman converter.
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By substituting yttrium with ytterbium within the crystal lattice of Yb:KYW due to the equivalent sizes of such chemical components as many as 100% of Yb-doping may very well be achieved.
Although ytterbium-doped laser acquire media generally show a small quantum defect, ytterbium-doped tungstates allow for significantly modest values. By way of example, a 1030-nm Yb:YAG laser would Usually be pumped around 940 nm, While Yb:KGW or Yb:KYW might be most effectively pumped all-around 981 nm.
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Yb:KYW crystal (Yb-doped potassium yttrium tungstate) as compared to its counterpart Yb:KGW, is usually a amazing materials that performs a crucial function in laser technology. Its Principal function will be to produce ultrashort pulses of sunshine, spanning just some hundred femtoseconds.
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