New Step by Step Map For KYW Crystal
New Step by Step Map For KYW Crystal
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The achieve bandwidth e.g. of Yb:KGW and Yb:KYW is extremely substantial in contrast with that of Yb:YAG. This enables for wide wavelength tunability and for Substantially shorter pulse durations from mode-locked lasers. Values effectively under one hundred fs are achieved with passive mode locking.
The Yb-doped potassium yttrium tungstate (Yb:KYW) crystal, when compared with its counterpart Yb:KGW, is really a amazing product that plays a significant job in laser technologies. Its Major operate is always to create ultrashort pulses of light, spanning just a few hundred femtoseconds.
time. Crystals with the compound melts congruently at 1007 oC, even so melt crystallization of top of the range crystal is extremely hard because of period changeover at ~920 oC. The very best seeded Option technique from
FIG. four. Autocorrelation perform of the heart beat 共a兲and spectrum 共b兲of a laser with an oblong Energetic ingredient for an output electricity of seven-hundred mW. The width of
This paper describes a femtosecond laser regenerative amplifier dependant on two Yb:KYW crystals with immediate longitudinal pumping by highly effective linear arrays of semiconductor injection lasers obtaining fiber output. To avoid spectral narrowing for the duration of amplification along with the corresponding lengthening in the amplified pulse when it is compressed, a combination of two Yb:KYW crystals had been applied, Together with the spectral maxima from the amplification shifted relative to one another and with spectral profiling from the amplified radiation.
Ahead of the event of Nd:YAG, Nd3+:CaWO4 was a very important uncommon-earth-doped laser acquire medium. It had been in fact Utilized in the 1st continuously working crystal laser.
FIG. 1. Optical layout of the laser with direct pumping with the radiation of semiconductor injection lasers. LD is an IPG Photonics laser diode with fiber output
Tungstates have a tendency to have significant Raman coefficients (�?Raman scattering). For that reason, they could make sizeable Raman achieve at moderate optical intensities. It is possible to utilize the laser crystal by itself to be a Raman converter.
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By substituting yttrium with ytterbium more info during the crystal lattice of Yb:KYW mainly because of the very similar measurements of these chemical features as many as one hundred% of Yb-doping might be obtained.
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Talk to RP Photonics for almost any guidance about tungstate lasers, which includes femtosecond lasers and higher-ability lasers.