5 Simple Statements About KYW Crystal Explained
5 Simple Statements About KYW Crystal Explained
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The Yb-doped potassium yttrium tungstate (Yb:KYW) crystal, when compared with its counterpart Yb:KGW, is really a amazing materials that performs an essential purpose in laser engineering. Its Key perform will be to create ultrashort pulses of light, spanning just some hundred femtoseconds.
We existing a dual-crystal Yb:KGW laserthat iscapable to operate being a Q-switched oscillator with output power nearly 24 W and pulse duration of twenty ns,or being a regenerative amplifier with output electrical power as much as 21 W and pulse duration beneath 200 fs soon after compression of chirped pulses. Both equally lasers have great beam excellent with beam parameter M2
Shade-coded reflectivity of the Bragg mirror as a perform of wavelength and angle with the incident beam.
By substituting yttrium with ytterbium within the crystal lattice of Yb:KYW mainly because of the very similar dimensions of such chemical elements as much as one hundred% of Yb-doping may be obtained. This unique attribute permits ytterbium to go ahead and take position of yttrium with pretty much no disruption to the crystal’s lattice.
Just before the event of Nd:YAG, Nd3+:CaWO4 was an important scarce-earth-doped laser obtain medium. It was in truth Employed in the first repeatedly functioning crystal laser.
Raman, luminescence and transmission spectra expose optical features owing into the existence of thulium ions, and for that reason the components could possibly be more studied inside the scope of laser and luminescence applications.
Spatial construction in the beam and also the corresponding intensity profiles I on the output in the laser.
... at 50 %-peak had been generated inside of a grasp oscillator with selfsynchronization in the axial modes, described inside our previously post. 21 The new edition in the laser, in contrast to that explained in our previously post, applied an Yb:KYW crystal using an N pcut (optical axis N p in the index ellipsoid was parallel towards the propagation course in the laser radiation), with the polarization on the created radiation directed along the N m axis.
By substituting yttrium with ytterbium within the crystal lattice of Yb:KYW due to the identical measurements of these chemical features as many as 100% of Yb-doping can be attained.
Even though ytterbium-doped laser get media typically show a small quantum defect, ytterbium-doped tungstates enable for notably modest values. For example, a 1030-nm Yb:YAG laser would Typically be pumped about 940 nm, whereas Yb:KGW or Yb:KYW can be most competently pumped all over 981 nm.
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Question RP Photonics for virtually any guidance regarding tungstate lasers, which includes femtosecond lasers and high-electrical power lasers.