The Greatest Guide To KYW Crystal
The Greatest Guide To KYW Crystal
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The acquire bandwidth e.g. of Yb:KGW and Yb:KYW is rather massive in comparison with that of Yb:YAG. This permits for extensive wavelength tunability and for Considerably shorter pulse durations from method-locked lasers. Values very well beneath a hundred fs have already been achieved with passive mode locking.
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time. Crystals on the compound melts congruently at 1007 oC, however soften crystallization of high quality crystal is unachievable as a result of section transition at ~920 oC. The best seeded solution approach from
Coloration-coded reflectivity of the Bragg mirror being a operate of wavelength and angle in the incident beam.
This paper describes a femtosecond laser regenerative amplifier based on two Yb:KYW crystals with immediate longitudinal pumping by highly effective linear arrays of semiconductor injection lasers acquiring fiber output. To forestall spectral narrowing during amplification plus the corresponding lengthening on the amplified pulse when it really is compressed, a mix of two Yb:KYW crystals ended up employed, Using the spectral maxima of your amplification shifted relative to each other and with spectral profiling of your amplified radiation.
Immediately after air drying and subsequent cleaning that has a cotton cloth soaked in Liquor, the movie surface showed no indications of peeling or scratches.
FIG. one. Optical structure of the laser with immediate pumping While using the radiation of semiconductor injection lasers. LD can be an IPG Photonics laser diode with fiber output
5 mm aside from the middle on the beam caustic. To be able to Look at the method matching simulation, we executed the experiment with Ng-Minimize crystal oscillator, which was developed Earlier As well as in a very same condition with simulation [11]. As demonstrated in Figure 3(b) with crimson dots and line, the CW output ability is highly dependent on the posture of laser crystal plus the experimental result coincides effectively with simulation consequence. As a Be aware, multimode operation transpired in experiment if the dimensions of your pump beam is larger than TEM00 cavity mode and it leads to larger CW output electricity during the displacement location underneath three.five mm.
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By substituting yttrium with ytterbium within the crystal lattice of Yb:KYW a result of the very similar sizes of these chemical factors as many as one hundred% of Yb-doping could possibly be obtained.
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The polarized absorption spectra of Tm3+-doped potassium yttrium tungstate (Tm:KY(WO4)two) crystal at home temperature had been measured. The emission spectrum and life time of your three File 4 thrilled condition ended up identified. Using regular and modified Judd–Ofelt theories, the intensity parameters as well as radiative lifetimes were calculated and good agreement Using the experimental final results was acquired for the two theories.
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