Getting My KYW Crystal To Work
Getting My KYW Crystal To Work
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Femtosecond laser according to Yb:KYW crystals with suppression of spectral narrowing within a regenerative amplifier by spectral profiling of the heartbeat
FIG. 4. Autocorrelation operate of the pulse 共a兲and spectrum 共b兲of the laser with a rectangular Energetic element for an output electric power of 700 mW. The width of
This paper describes a femtosecond laser regenerative amplifier determined by two Yb:KYW crystals with direct longitudinal pumping by highly effective linear arrays of semiconductor injection lasers possessing fiber output. To prevent spectral narrowing through amplification and also the corresponding lengthening of your amplified pulse when it really is compressed, a mix of two Yb:KYW crystals have been used, Together with the spectral maxima of the amplification shifted relative to one another and with spectral profiling of the amplified radiation.
Just before the event of Nd:YAG, Nd3+:CaWO4 was a very important exceptional-earth-doped laser acquire medium. It had been in actual fact used in the 1st repeatedly functioning crystal laser.
FIG. one. Optical structure of the laser with direct pumping While using the radiation of semiconductor injection lasers. LD can be an IPG Photonics laser diode with fiber output
Spatial composition of the beam and the corresponding intensity profiles I at the output of the laser.
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By substituting yttrium with ytterbium from the crystal lattice of Yb:KYW because of the very similar measurements of such chemical aspects around a hundred% of Yb-doping can be accomplished.
The thermal conductivity of popular double tungstates is of your purchase to three–4 W/(K m) �?which is not negative as opposed with other laser crystals (While various occasions below for YAG), and reasonably massive in contrast With all the thermal conductivity of typical glasses.
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Yb:KYW crystal (Yb-doped potassium yttrium tungstate) in comparison to its counterpart Yb:KGW, is usually a outstanding product that plays a vital position in laser engineering. Its Main function is usually to deliver ultrashort pulses of light, spanning only a few hundred femtoseconds.
Check with RP Photonics for any guidance concerning tungstate lasers, which includes femtosecond lasers and higher-ability lasers.