Fascination About KYW Crystal

Fascination About KYW Crystal

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The achieve bandwidth e.g. of Yb:KGW and Yb:KYW is extremely massive when compared with that of Yb:YAG. This permits for wide wavelength tunability and for Significantly shorter pulse durations from manner-locked lasers. Values properly under one hundred fs are actually accomplished with passive method locking.

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time. Crystals of your compound melts congruently at 1007 oC, even so melt crystallization of top quality crystal is impossible as a result of section transition at ~920 oC. The highest seeded solution strategy from

Shade-coded reflectivity of a Bragg mirror as a function of wavelength and angle of your incident beam.

This paper describes a femtosecond laser regenerative amplifier depending on two Yb:KYW crystals with direct longitudinal pumping by strong linear arrays of semiconductor injection lasers getting fiber output. To prevent spectral narrowing for the duration of amplification as well as corresponding lengthening from the amplified pulse when it truly is compressed, a mix of two Yb:KYW crystals were utilised, While using the spectral maxima on the amplification shifted relative to one another and with spectral profiling with the amplified radiation.

Prior to the event of Nd:YAG, Nd3+:CaWO4 was an important uncommon-earth-doped laser gain medium. It absolutely was in actual fact Utilized in the very first constantly operating crystal laser.

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Spatial composition from the beam along with the corresponding intensity profiles I on the output in the laser.

For tungstates, the ytterbium doping concentration can be extremely substantial with no considerable quenching because the changed ions have an extremely comparable ion radius, and the inter-ion length is relatively substantial.

By substituting yttrium with ytterbium during the crystal lattice of Yb:KYW as a result of comparable dimensions of these chemical elements nearly one hundred% of Yb-doping might be achieved.

While ytterbium-doped laser obtain media normally show a little quantum defect, ytterbium-doped tungstates enable for specially little values. One example is, a 1030-nm Yb:YAG laser would normally be pumped close to 940 nm, While Yb:KGW or Yb:KYW might be most proficiently pumped all around 981 nm.

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