The smart Trick of KYW Crystal That No One is Discussing
The smart Trick of KYW Crystal That No One is Discussing
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The attain bandwidth e.g. of Yb:KGW and Yb:KYW is quite significant compared with that of Yb:YAG. This allows for vast wavelength tunability and for Substantially shorter pulse durations from manner-locked lasers. Values very well under 100 fs happen to be accomplished with passive method locking.
The comparison with Eyeglasses is acceptable since the significant attain bandwidth will allow e.g. tungstate femtosecond lasers and tunable lasers to contend with glass lasers.
Femtosecond laser based upon Yb:KYW crystals with suppression of spectral narrowing within a regenerative amplifier by spectral profiling of the heart beat
FIG. four. Autocorrelation purpose of the heartbeat 共a兲and spectrum 共b兲of a laser with a rectangular active component for an output electricity of seven-hundred mW. The width of
By substituting yttrium with ytterbium while in the crystal lattice of Yb:KYW mainly because of the related measurements of such chemical factors around 100% of Yb-doping may very well be realized. This special attribute permits ytterbium to go ahead and take spot of yttrium with just about no disruption for the crystal’s lattice.
Adhesion Take a look at Compliant with MIL-C-675C navy requirements, an adhesion test involved applying a tape that fulfills LT-ninety specifications onto the lens movie layer. The tape was affixed totally and afterwards removed vertically. This treatment was carried out thrice, resulting in no blistering or peeling.
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Spatial composition on the beam and also the corresponding intensity profiles I within the output with the laser.
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... Not just the posture of crystal while in the cavity but additionally the amplification axis of crystal impacts the laser Procedure considerably, as the absorption and emission cross sections from the crystal are quite distinctive in accordance with the orientation with the crystal.
The thermal conductivity of popular double tungstates is from the buy to 3–4 W/(K m) �?which is not negative as opposed with other laser crystals (although quite a few instances below for YAG), and rather significant compared With all the thermal conductivity of normal website glasses.
Li2WO4-WO3 flux was effectively applied cutting down the growth temperature under 900 oC. As outlined by solitary crystal x-ray measurements, the crystal corresponds on the P2/n Room group.
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