KYW Crystal - An Overview
KYW Crystal - An Overview
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In simple conditions, the Yb:KYW crystal has observed its market in higher-electricity laser applications as a consequence of its power to deliver large energy ultrashort laser pulses whilst retaining a compact dimension. The interplay of its characteristics �?seamless ytterbium substitution, potent absorption characteristics, ultrashort pulse technology and efficiency in Power conversion �?positions the Yb:KYW crystal being a cornerstone from the laser technological innovation, masking numerous fields starting from scientific exploration to industrial programs.
The Yb-doped potassium yttrium tungstate (Yb:KYW) crystal, as compared to its counterpart Yb:KGW, is a exceptional content that performs a crucial job in laser know-how. Its Major functionality is usually to deliver ultrashort pulses of light, spanning just a couple hundred femtoseconds.
Femtosecond laser according to Yb:KYW crystals with suppression of spectral narrowing inside a regenerative amplifier by spectral profiling of the pulse
Coloration-coded reflectivity of the Bragg mirror as being a functionality of wavelength and angle in the incident beam.
This paper describes a femtosecond laser regenerative amplifier according to two Yb:KYW crystals with direct longitudinal pumping by strong linear arrays of semiconductor injection lasers acquiring fiber output. To forestall spectral narrowing for the duration of amplification along with the corresponding lengthening on the amplified pulse when it really is compressed, a combination of two Yb:KYW crystals ended up utilised, Along with the spectral maxima of the amplification shifted relative to one another and with spectral profiling of the amplified radiation.
Adhesion Test Compliant with MIL-C-675C armed service specifications, an adhesion check involved applying a tape that satisfies LT-90 requirements onto the lens movie layer. The tape was affixed totally after which you can taken off vertically. This process was executed three times, resulting in no blistering or peeling.
Raman, luminescence and transmission spectra expose optical options owing for the presence of thulium ions, and so the resources may very well be further studied inside the scope of laser and luminescence apps.
five mm besides the middle of your beam caustic. To be able to Check out the method matching simulation, we executed the experiment with Ng-Slash crystal oscillator, which was formulated Formerly As well as in a exact affliction with simulation [11]. As shown in Figure three(b) with crimson dots and line, the CW output energy is very dependent on the situation of laser crystal along with the experimental result coincides properly with simulation result. Like a Take note, multimode operation occurred in experiment once the measurement of your pump beam is more substantial than TEM00 cavity manner and it triggers increased CW output electrical power from the displacement region beneath 3.5 mm.
For tungstates, the ytterbium doping concentration can be extremely higher without the need of considerable quenching as the changed ions have a really related ion radius, and the inter-ion distance is comparatively huge.
By substituting yttrium with ytterbium while in the crystal lattice of Yb:KYW mainly because of the very similar measurements of these chemical factors as much as one hundred% of Yb-doping can be attained.
When ytterbium-doped laser obtain media typically show a little quantum defect, ytterbium-doped tungstates permit for particularly tiny values. Such as, a 1030-nm Yb:YAG laser would Typically be pumped all over 940 nm, Whilst Yb:KGW or Yb:KYW may very well be most proficiently pumped about 981 nm.
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