New Step by Step Map For KYW Crystal
New Step by Step Map For KYW Crystal
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The acquire bandwidth e.g. of Yb:KGW and Yb:KYW may be very big as opposed with that of Yb:YAG. This allows for broad wavelength tunability and for A lot shorter pulse durations from mode-locked lasers. Values perfectly beneath 100 fs have already been accomplished with passive method locking.
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time. Crystals of the compound melts congruently at 1007 oC, having said that melt crystallization of high quality crystal is difficult because of phase changeover at ~920 oC. The highest seeded Answer technique from
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This paper describes a femtosecond laser regenerative amplifier depending on two Yb:KYW crystals with immediate longitudinal pumping by potent linear arrays of semiconductor injection lasers possessing fiber output. To forestall spectral narrowing for the duration of amplification and the corresponding lengthening from the amplified pulse when it really is compressed, a combination of two Yb:KYW crystals had been employed, With all the spectral maxima on the amplification shifted relative to each other and with spectral profiling in the amplified radiation.
Just before the development of Nd:YAG, Nd3+:CaWO4 was a very important unusual-earth-doped laser obtain medium. It absolutely was in fact Utilized in the first consistently working crystal laser.
FIG. one. Optical structure of the laser with direct pumping Using the radiation of semiconductor injection lasers. LD is definitely an IPG Photonics laser diode with fiber output
five mm aside from the center of the beam caustic. To be able to Examine the method matching simulation, we performed the experiment with Ng-Reduce check here crystal oscillator, which was developed Beforehand As well as in a very same affliction with simulation [eleven]. As demonstrated in Determine 3(b) with pink dots and line, the CW output electricity is extremely dependent on the position of laser crystal along with the experimental consequence coincides effectively with simulation final result. Like a Observe, multimode operation transpired in experiment once the sizing of the pump beam is greater than TEM00 cavity mode and it causes increased CW output electric power while in the displacement region beneath 3.5 mm.
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... Don't just the position of crystal from the cavity and also the amplification axis of crystal impacts the laser operation significantly, because the absorption and emission cross sections on the crystal are quite different based on the orientation of the crystal.
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Talk to RP Photonics for almost any guidance about tungstate lasers, like femtosecond lasers and higher-ability lasers.