An Unbiased View of KYW Crystal
An Unbiased View of KYW Crystal
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In practical phrases, the Yb:KYW crystal has uncovered its niche in higher-energy laser applications because of its ability to deliver superior Electricity ultrashort laser pulses though protecting a compact dimensions. The interplay of its characteristics �?seamless ytterbium substitution, potent absorption properties, ultrashort pulse generation and performance in Strength conversion �?positions the Yb:KYW crystal like a cornerstone within the laser technologies, masking varied fields ranging from scientific investigate to industrial applications.
The Yb-doped potassium yttrium tungstate (Yb:KYW) crystal, as compared to its counterpart Yb:KGW, is actually a exceptional material that plays a crucial purpose in laser technology. Its Main perform is usually to make ultrashort pulses of light, spanning just a few hundred femtoseconds.
time. Crystals on the compound melts congruently at 1007 oC, having said that melt crystallization of high quality crystal is unattainable due to period changeover at ~920 oC. The top seeded Option technique from
FIG. four. Autocorrelation functionality of the heart beat 共a兲and spectrum 共b兲of the laser with an oblong active ingredient for an output power of seven hundred mW. The width of
Ultrafast lasers, with pulse widths of some picoseconds (ten−12 s) or significantly less, enable enough time resolution needed in laser-excited fluorescence life time spectroscopy and imaging strategies.In addition, they deliver superior pulse peak powers at substantial repetition charges and average common output powers.
Before the event of Nd:YAG, Nd3+:CaWO4 was a vital uncommon-earth-doped laser get medium. It absolutely was in reality Employed in the first constantly running crystal laser.
Raman, luminescence and transmission spectra expose optical features owing for the existence get more info of thulium ions, and as a consequence the products could possibly be even further examined in the scope of laser and luminescence applications.
five mm in addition to the middle in the beam caustic. As a way to Examine the mode matching simulation, we done the experiment with Ng-Minimize crystal oscillator, which was produced previously As well as in a exact same problem with simulation [11]. As demonstrated in Figure three(b) with red dots and line, the CW output ability is extremely depending on the situation of laser crystal along with the experimental consequence coincides nicely with simulation final result. Being a note, multimode Procedure happened in experiment once the sizing in the pump beam is larger sized than TEM00 cavity manner and it brings about bigger CW output electrical power during the displacement region under three.five mm.
For tungstates, the ytterbium doping concentration can be extremely higher with no considerable quenching because the changed ions have an incredibly identical ion radius, plus the inter-ion distance is fairly big.
Substantial-energy repetitively pulsed ytterbium lasers with supershort pulse width and immediate diode pumping for technological and biomedical programs
Although ytterbium-doped laser obtain media normally exhibit a small quantum defect, ytterbium-doped tungstates enable for significantly compact values. For example, a 1030-nm Yb:YAG laser would normally be pumped around 940 nm, Whilst Yb:KGW or Yb:KYW can be most successfully pumped around 981 nm.
Li2WO4-WO3 flux was effectively utilized decreasing The expansion temperature down below 900 oC. In accordance with one crystal x-ray measurements, the crystal corresponds to the P2/n Area group.
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