Everything about KYW Crystal

Everything about KYW Crystal

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The achieve bandwidth e.g. of Yb:KGW and Yb:KYW is incredibly large in contrast with that of Yb:YAG. This enables for huge wavelength tunability and for much shorter pulse durations from mode-locked lasers. Values effectively underneath one hundred fs are actually achieved with passive manner locking.

This exclusive characteristic of ultrafast pulses permits nonlinear optical interaction with tissue at small Total exposure, and drives programs such as deep-tissue multiphoton microscopy and significant-precision eye medical procedures

time. Crystals from the compound melts congruently at 1007 oC, nevertheless soften crystallization of top of the range crystal is unachievable resulting from section transition at ~920 oC. The best seeded Option method from

The absorption and emission spectra of Yb:KYW Crystals Show powerful peaks at 980 nm and 1030 nm, respectively, ensuring economical Electricity conversion and substantial functionality in laser techniques.

By substituting yttrium with ytterbium in the crystal lattice of Yb:KYW a result of the very similar sizes of such chemical aspects as much as a hundred% of Yb-doping may very well be attained. This special characteristic permits ytterbium to take the spot of yttrium with nearly no disruption for the crystal’s lattice.

Adhesion Test Compliant with MIL-C-675C armed forces criteria, an adhesion test involved applying a tape that meets LT-90 technical specs on to the lens movie layer. The tape was affixed absolutely and after that eliminated vertically. This method was carried out three times, causing no blistering or peeling.

PDF Yb:KGW and Yb:KYW crystals have broad emission bandwidths and they are made use of as lasing elements to create ultrashort (~ a hundred-200 fs) higher power pulses. Immediate pump of Yb:KGW/KYW crystals with laser diodes operating at 981 nm supports compact laser devices.

Spatial framework with the beam plus the corresponding intensity profiles I in the output from the laser.

For tungstates, the ytterbium doping concentration can be extremely large without important quenching as the changed ions have a very related ion radius, and the inter-ion distance is comparatively substantial.

By more info substituting yttrium with ytterbium while in the crystal lattice of Yb:KYW because of the equivalent dimensions of such chemical aspects up to one hundred% of Yb-doping might be realized.

The thermal conductivity of widespread double tungstates is of the purchase to three–four W/(K m) �?which is not negative as opposed with other laser crystals (Even though many times under for YAG), and rather significant in contrast Together with the thermal conductivity of regular Eyeglasses.

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At the same time, a shorter laser wavelength can be attained; it is achievable to operate which has a quantum defect very well beneath one%. Like a consequence, the warmth generation is often so little this partly compensates the reduce thermal conductivity.