KYW Crystal Secrets
KYW Crystal Secrets
Blog Article
In simple conditions, the Yb:KYW crystal has identified its area of interest in significant-electric power laser apps on account of its capacity to generate higher Electrical power ultrashort laser pulses whilst sustaining a compact measurement. The interaction of its functions �?seamless ytterbium substitution, sturdy absorption traits, ultrashort pulse technology and efficiency in Vitality conversion �?positions the Yb:KYW crystal being a cornerstone inside the laser technological innovation, masking numerous fields ranging from scientific exploration to industrial apps.
The Yb-doped potassium yttrium tungstate (Yb:KYW) crystal, in comparison with its counterpart Yb:KGW, is actually a extraordinary product that performs an important function in laser technological innovation. Its primary function would be to produce ultrashort pulses of sunshine, spanning just some hundred femtoseconds.
Femtosecond laser depending on Yb:KYW crystals with suppression of spectral narrowing in a very regenerative amplifier by spectral profiling of the pulse
FIG. four. Autocorrelation function of the heartbeat 共a兲and spectrum 共b兲of the laser with a rectangular Lively element for an output ability of 700 mW. The width of
By substituting yttrium with ytterbium during the crystal lattice of Yb:KYW as a result of related measurements of such chemical features up to a hundred% of Yb-doping can be attained. This exceptional attribute permits ytterbium to take the spot of yttrium with nearly no disruption for the crystal’s lattice.
Just after air drying and subsequent cleaning which has a cotton cloth soaked in Liquor, the movie surface area confirmed no indications of peeling or scratches.
PDF Yb:KGW and Yb:KYW crystals have wide emission bandwidths and so are made use of as lasing elements to generate ultrashort (~ a hundred-two hundred fs) substantial electrical power pulses. Direct pump of Yb:KGW/KYW crystals with laser diodes working at 981 nm supports compact laser methods.
five mm besides the center in the beam caustic. As a way to Verify the manner matching simulation, we done the experiment with Ng-Lower crystal oscillator, which was produced previously As well as in a similar problem with click here simulation [eleven]. As proven in Determine 3(b) with pink dots and line, the CW output electric power is highly dependent on the position of laser crystal plus the experimental outcome coincides perfectly with simulation end result. As a Notice, multimode Procedure occurred in experiment once the sizing on the pump beam is bigger than TEM00 cavity method and it results in larger CW output electric power in the displacement region under 3.five mm.
... at 50 %-peak have been generated in a learn oscillator with selfsynchronization on the axial modes, described inside our earlier article. 21 The new edition in the laser, in contrast to that explained in our before write-up, used an Yb:KYW crystal having an N pcut (optical axis N p on the index ellipsoid was parallel to the propagation course from the laser radiation), While using the polarization on the created radiation directed along the N m axis.
By substituting yttrium with ytterbium from the crystal lattice of Yb:KYW because of the comparable dimensions of those chemical components up to one hundred% of Yb-doping could possibly be achieved.
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Li2WO4-WO3 flux was efficiently utilized lessening the growth temperature under 900 oC. As outlined by solitary crystal x-ray measurements, the crystal corresponds into the P2/n space group.
Yb:KYW crystal (Yb-doped potassium yttrium tungstate) in comparison with its counterpart Yb:KGW, is actually a impressive content that plays an important role in laser technology. Its Most important purpose is usually to produce ultrashort pulses of sunshine, spanning just a couple hundred femtoseconds.
Talk to RP Photonics for just about any information about tungstate lasers, including femtosecond lasers and substantial-electric power lasers.