KYW Crystal - An Overview

KYW Crystal - An Overview

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Femtosecond laser based on Yb:KYW crystals with suppression of spectral narrowing in the regenerative amplifier by spectral profiling of the heart beat

FIG. 4. Autocorrelation purpose of the pulse 共a兲and spectrum 共b兲of the laser with an oblong active aspect for an output energy of seven hundred mW. The width of

By substituting yttrium with ytterbium while in the crystal lattice of Yb:KYW a result of the similar sizes of these chemical factors approximately one hundred% of Yb-doping may very well be obtained. This unique attribute permits ytterbium to go ahead and take position of yttrium with just about no disruption to your crystal’s lattice.

Adhesion Exam Compliant with MIL-C-675C army specifications, an adhesion take a look at associated implementing a tape that satisfies LT-ninety technical specs on to the lens movie layer. The tape was affixed thoroughly after which you can eradicated vertically. This procedure was performed thrice, causing no blistering or peeling.

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Spatial construction from the beam and also the corresponding intensity profiles I within the output with the laser.

For tungstates, the ytterbium doping concentration can be extremely higher devoid of substantial quenching since the changed ions have a really related ion radius, and the inter-ion distance is comparatively substantial.

By substituting yttrium with ytterbium within the crystal lattice of Yb:KYW mainly because of the similar dimensions of those chemical components approximately one hundred% of Yb-doping might be attained.

The thermal conductivity of widespread double tungstates is from the buy to 3–4 W/(K m) �?which isn't lousy compared with other laser crystals (Despite the fact that quite a few instances under for YAG), and pretty huge in comparison Using the thermal conductivity of typical Eyeglasses.

Li2WO4-WO3 flux was productively utilized reducing the growth temperature underneath 900 oC. According to single crystal x-ray measurements, the crystal corresponds for the P2/n Place team.

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Simultaneously, a shorter laser wavelength may be attained; it is achievable to operate which has a quantum defect properly beneath one%. Like a consequence, the warmth generation is usually so tiny this partly compensates the reduced thermal conductivity.