KYW Crystal - An Overview
KYW Crystal - An Overview
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In simple terms, the Yb:KYW crystal has located its area of interest in superior-electrical power laser programs on account of its capability to make high Electrical power ultrashort laser pulses whilst preserving a compact sizing. The interplay of its capabilities �?seamless ytterbium substitution, robust absorption qualities, ultrashort pulse technology and effectiveness in Power conversion �?positions the Yb:KYW crystal as a cornerstone during the laser technologies, covering numerous fields ranging from scientific investigate to industrial programs.
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time. Crystals on the compound melts congruently at 1007 oC, even so melt crystallization of top quality crystal is unattainable due to section transition at ~920 oC. The best seeded Resolution technique from
The absorption and emission spectra of Yb:KYW Crystals Display screen strong peaks at 980 nm and 1030 nm, respectively, making certain productive Strength conversion and high functionality in laser programs.
Optical format of the laser with direct pumping with the radiation of semiconductor injection lasers. LD can be an IPG Photonics laser diode with fiber output on the radiation, WP is really a 50 %-wave plate, CL is usually a collimating lens, FL is often a focusing lens, AE is surely an active aspect created from an Yb:KYW crystal, DM is usually a spherical dichroic mirror, M1-M6 tend to be the cavity mirrors, OC is the output mirror, and SAM is really a semiconductor saturable-absorber mirror.
The monoclinic crystal constructions ends in a organic birefringence, helping to KYW Crystal avoid thermally induced polarization rotation and depolarization decline.
PDF Yb:KGW and Yb:KYW crystals have wide emission bandwidths and so are employed as lasing supplies to generate ultrashort (~ one hundred-two hundred fs) substantial energy pulses. Immediate pump of Yb:KGW/KYW crystals with laser diodes working at 981 nm supports compact laser systems.
A superior brightnessQ-switched oscillator and regenerative amplifier based on a twin-crystal Yb:KGW laser
... at 50 %-peak have been produced inside a learn oscillator with selfsynchronization on the axial modes, described inside our previously write-up. 21 The new edition with the laser, not like that described inside our earlier article, made use of an Yb:KYW crystal with the N pcut (optical axis N p of your index ellipsoid was parallel for the propagation way on the laser radiation), With all the polarization with the generated radiation directed alongside the N m axis.
By substituting yttrium with ytterbium during the crystal lattice of Yb:KYW mainly because of the very similar measurements of such chemical things up to a hundred% of Yb-doping could possibly be realized.
Whilst ytterbium-doped laser obtain media normally exhibit a small quantum defect, ytterbium-doped tungstates enable for notably modest values. By way of example, a 1030-nm Yb:YAG laser would Generally be pumped all around 940 nm, whereas Yb:KGW or Yb:KYW could be most competently pumped about 981 nm.
This tandem of attributes has significantly-reaching implications, notably in the development of compact however powerfull lasers.
The polarized absorption spectra of Tm3+-doped potassium yttrium tungstate (Tm:KY(WO4)two) crystal at space temperature had been measured. The emission spectrum and life time on the three File four psyched state ended up decided. Working with regular and modified Judd–Ofelt theories, the intensity parameters and also the radiative lifetimes ended up calculated and great agreement While using the experimental effects was attained for each theories.
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