KYW Crystal Secrets
KYW Crystal Secrets
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The Yb-doped potassium yttrium tungstate (Yb:KYW) crystal, when compared with its counterpart Yb:KGW, can be a remarkable content that performs an essential purpose in laser know-how. Its Principal purpose would be to crank out ultrashort pulses of light, spanning only a few hundred femtoseconds.
time. Crystals from the compound melts congruently at 1007 oC, nevertheless soften crystallization of top quality crystal is impossible resulting from period transition at ~920 oC. The highest seeded Remedy process from
Color-coded reflectivity of a Bragg mirror as being a operate of wavelength and angle with the incident beam.
Ultrafast lasers, with pulse widths of some picoseconds (10−12 s) or much less, enable some time resolution demanded in laser-psyched fluorescence life span spectroscopy and imaging approaches.Additionally, they supply substantial pulse peak powers at large repetition premiums and moderate common output powers.
Soon after air drying and subsequent cleansing which has a cotton cloth soaked in alcohol, the film floor confirmed no indications of peeling or scratches.
PDF Yb:KGW and Yb:KYW crystals have broad emission bandwidths and so are utilized as lasing materials to crank out ultrashort (~ 100-200 fs) superior electrical power pulses. Immediate pump of Yb:KGW/KYW crystals with laser diodes operating at 981 nm supports compact laser programs.
five mm aside from the middle in the beam caustic. So that you can Check out the manner matching simulation, we carried out the experiment with Ng-Slash crystal oscillator, which was produced Beforehand and in a similar condition with simulation [11]. As demonstrated in Determine three(b) with crimson dots and line, the CW output ability is highly dependent on the situation of laser crystal and the experimental end result coincides very well with simulation final result. As being a Be aware, multimode operation transpired in experiment if the dimensions of your pump beam is bigger than TEM00 cavity mode and it leads to larger CW output power inside the displacement region under 3.5 mm.
For tungstates, the ytterbium doping focus can be extremely high with out important quenching since the changed ions have an exceptionally identical ion click here radius, and the inter-ion distance is pretty huge.
By substituting yttrium with ytterbium from the crystal lattice of Yb:KYW due to equivalent dimensions of these chemical things around a hundred% of Yb-doping might be attained.
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Yb:KYW crystal (Yb-doped potassium yttrium tungstate) as compared to its counterpart Yb:KGW, is often a amazing content that performs a significant position in laser engineering. Its primary functionality is usually to generate ultrashort pulses of sunshine, spanning just some hundred femtoseconds.
Check with RP Photonics for just about any assistance relating to tungstate lasers, including femtosecond lasers and substantial-power lasers.