KYW Crystal Secrets
KYW Crystal Secrets
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The acquire bandwidth e.g. of Yb:KGW and Yb:KYW may be very big in comparison with that of Yb:YAG. This enables for large wavelength tunability and for A great deal shorter pulse durations from manner-locked lasers. Values perfectly under one hundred fs have been reached with passive mode locking.
The Yb-doped potassium yttrium tungstate (Yb:KYW) crystal, when compared to its counterpart Yb:KGW, can be a exceptional material that performs a vital function in laser technological know-how. Its Main perform is always to generate ultrashort pulses of light, spanning only a few hundred femtoseconds.
Femtosecond laser based on Yb:KYW crystals with suppression of spectral narrowing inside a regenerative amplifier by spectral profiling of the heart beat
FIG. four. Autocorrelation operate of the heartbeat 共a兲and spectrum 共b兲of a laser with a rectangular Energetic component for an output electric power of 700 mW. The width of
By substituting yttrium with ytterbium from the crystal lattice of Yb:KYW due to the very similar measurements of those chemical factors nearly a hundred% of Yb-doping may very well be attained. This unique attribute permits ytterbium to go ahead and take area of yttrium with practically no disruption to the crystal’s lattice.
Soon after air drying and subsequent cleansing by using a cotton cloth soaked in Alcoholic beverages, the movie floor showed no signs of peeling or scratches.
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Spatial composition in the beam and also the corresponding intensity profiles I within the output from the laser.
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... Not just the position of crystal from the cavity and also the amplification axis of crystal has an effect on the laser operation enormously, since the absorption and emission cross sections on the crystal are rather various according to the orientation on the crystal.
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Simultaneously, a shorter laser wavelength could be attained; it is achievable to function having a quantum defect very well down below one%. Being a consequence, the warmth generation might be so small this partly compensates the lessen thermal conductivity.