Getting My KYW Crystal To Work
Getting My KYW Crystal To Work
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The comparison with Eyeglasses is suitable Because the large attain bandwidth enables e.g. tungstate femtosecond lasers and tunable lasers to contend with glass lasers.
The Yb:KYW crystal’s proficiency in mild absorption at around 981 nm can make the crystal well matched for diode pumping. It really is even further Improved by its remarkable performance in this process, coupled with its minimal quantum defect.
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This paper describes a femtosecond laser regenerative amplifier depending on two Yb:KYW crystals with direct longitudinal pumping by powerful linear arrays of semiconductor injection lasers having fiber output. To circumvent spectral narrowing all through amplification plus the corresponding lengthening with the amplified pulse when it truly is compressed, a combination of two Yb:KYW crystals were being utilised, With all the spectral maxima of the amplification shifted relative to one another and with spectral profiling of the amplified radiation.
The monoclinic crystal buildings brings about a purely natural birefringence, assisting to prevent thermally induced polarization rotation and depolarization reduction.
Raman, luminescence and transmission spectra expose optical features owing towards the presence of thulium ions, and so the supplies could possibly be even more examined in the scope of laser and luminescence purposes.
Spatial composition from the beam as well as corresponding intensity profiles I in the output in the laser.
For tungstates, the ytterbium doping focus can be very significant devoid of important quenching because the replaced ions have an exceedingly very similar ion radius, plus the inter-ion length is comparatively significant.
... Don't just the position of crystal within the cavity but in addition the amplification axis of crystal impacts the laser operation tremendously, because the absorption and emission cross sections from the crystal are fairly various according to the orientation of the crystal.
The thermal conductivity of popular double tungstates is on the order to three–4 W/(K m) �?which is not bad when compared with other laser crystals (Though quite a few instances less than for YAG), and reasonably large in comparison While using the thermal conductivity of standard Eyeglasses.
Li2WO4-WO3 flux was effectively utilized lessening the growth temperature beneath 900 oC. As outlined by one crystal x-ray measurements, the crystal corresponds towards the P2/n Area group.
The polarized absorption spectra of Tm3+-doped potassium yttrium tungstate (Tm:KY(WO4)2) crystal at area temperature were being measured. The emission spectrum and lifetime on the three File four psyched state had been established. Employing conventional and modified Judd–Ofelt theories, the depth parameters and the radiative lifetimes were calculated and great agreement With all the experimental benefits was acquired for read more the two theories.
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