Top KYW Crystal Secrets
Top KYW Crystal Secrets
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The Yb-doped potassium yttrium tungstate (Yb:KYW) crystal, in comparison to its counterpart Yb:KGW, is often a outstanding content that performs a very important purpose in laser know-how. Its Key function will be to deliver ultrashort pulses of sunshine, spanning just a few hundred femtoseconds.
Femtosecond laser dependant on Yb:KYW crystals with suppression of spectral narrowing in the regenerative amplifier by spectral profiling of the heartbeat
FIG. 4. Autocorrelation function of the heart beat 共a兲and spectrum 共b兲of a laser with an oblong Energetic factor for an output electrical power of seven-hundred mW. The width of
Optical structure of the laser with direct pumping Together with the radiation of semiconductor injection lasers. LD is really an IPG Photonics laser diode with fiber output with the radiation, WP is usually a 50 percent-wave plate, CL is often a collimating lens, FL is actually a concentrating lens, AE can be an Lively factor comprised of an Yb:KYW crystal, DM is actually a spherical dichroic mirror, M1-M6 will be the cavity mirrors, OC is the output mirror, and SAM is actually a semiconductor saturable-absorber mirror.
The monoclinic crystal constructions ends in a all-natural birefringence, helping to avoid thermally induced polarization rotation and depolarization reduction.
PDF Yb:KGW and Yb:KYW crystals have broad emission bandwidths and therefore are utilized as lasing materials to crank out ultrashort (~ 100-200 fs) substantial power pulses. Direct pump of Yb:KGW/KYW crystals with laser diodes working at 981 nm supports compact laser programs.
A large brightnessQ-switched oscillator and regenerative amplifier based on a dual-crystal Yb:KGW laser
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Higher-electrical power repetitively pulsed ytterbium lasers with supershort pulse width and direct diode pumping for technological and biomedical applications
Even though ytterbium-doped laser gain media frequently exhibit a small quantum defect, ytterbium-doped tungstates allow for for notably small values. By way of example, a 1030-nm Yb:YAG laser would normally be pumped all around 940 nm, Whilst Yb:KGW or Yb:KYW might be most efficiently pumped close to 981 nm.
This tandem of attributes has significantly-reaching implications, notably in the development of compact nevertheless powerfull lasers.
Yb:KYW crystal (Yb-doped potassium yttrium tungstate) when compared to its counterpart Yb:KGW, is really a remarkable content that plays a vital position in laser technologies. Its Key function is to create ultrashort pulses of sunshine, spanning just a couple hundred femtoseconds.
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