Fascination About KYW Crystal
Fascination About KYW Crystal
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The Yb-doped potassium yttrium tungstate (Yb:KYW) crystal, compared to its counterpart Yb:KGW, is really a impressive content that performs a vital purpose in laser know-how. Its Most important functionality should be to deliver ultrashort pulses of sunshine, spanning only a few hundred femtoseconds.
The Yb:KYW crystal’s proficiency in gentle absorption at all-around 981 nm tends to make the crystal like minded for diode pumping. It truly is even further Increased by its remarkable efficiency in this method, coupled with its low quantum defect.
Coloration-coded reflectivity of the Bragg mirror as being a operate of wavelength and angle of your incident beam.
This paper describes a femtosecond laser regenerative amplifier dependant on two Yb:KYW crystals with immediate longitudinal pumping by strong linear arrays of semiconductor injection lasers obtaining fiber output. To avoid spectral narrowing in the course of amplification and also the corresponding lengthening of the amplified pulse when it's compressed, a mix of two Yb:KYW crystals ended up employed, with the spectral maxima in the amplification shifted relative to each other and with spectral profiling with the amplified radiation.
Ahead of the event of Nd:YAG, Nd3+:CaWO4 was a very important exceptional-earth-doped laser gain medium. It was in actual fact used in the 1st continuously operating crystal laser.
FIG. 1. Optical structure of a laser with direct pumping with the radiation of semiconductor injection lasers. LD is really an IPG Photonics laser diode with fiber output
Tungstates are inclined to acquire high Raman coefficients (�?Raman scattering). Consequently, they could crank out major Raman attain at average optical intensities. It is feasible to make use of the laser crystal by itself as being a Raman converter.
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... Not merely the situation of crystal during the cavity but will also the amplification axis of crystal has an effect on the laser Procedure considerably, as the absorption click here and emission cross sections with the crystal are rather unique based on the orientation in the crystal.
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Yb:KYW crystal (Yb-doped potassium yttrium tungstate) as compared to its counterpart Yb:KGW, is a remarkable product that performs a vital position in laser technological innovation. Its Principal operate would be to generate ultrashort pulses of sunshine, spanning just a few hundred femtoseconds.
Request RP Photonics for any tips concerning tungstate lasers, together with femtosecond lasers and large-power lasers.