The KYW Crystal Diaries
The KYW Crystal Diaries
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In sensible terms, the Yb:KYW crystal has discovered its niche in higher-energy laser applications as a result of its capability to produce higher Vitality ultrashort laser pulses even though preserving a compact size. The interplay of its attributes �?seamless ytterbium substitution, strong absorption properties, ultrashort pulse era and efficiency in Electricity conversion �?positions the Yb:KYW crystal like a cornerstone in the laser technological know-how, covering numerous fields starting from scientific investigation to industrial purposes.
The comparison with glasses is appropriate For the reason that massive obtain bandwidth permits e.g. tungstate femtosecond lasers and tunable lasers to contend with glass lasers.
The Yb:KYW crystal’s proficiency in gentle absorption at around 981 nm tends to make the crystal well suited for diode pumping. It can be more Increased by its outstanding performance in this method, coupled with its very low quantum defect.
The absorption and emission spectra of Yb:KYW Crystals Exhibit solid peaks at 980 nm and 1030 nm, respectively, making sure successful Electrical power conversion and high efficiency in laser techniques.
Ultrafast lasers, with pulse widths of a few picoseconds (10−12 s) or less, help some time resolution demanded in laser-psyched fluorescence life time spectroscopy and imaging tactics.In addition, they deliver high pulse peak powers at high repetition fees and moderate normal output powers.
Prior to the event of Nd:YAG, Nd3+:CaWO4 was a vital rare-earth-doped laser achieve medium. It absolutely was in actual fact used in the initial continually running crystal laser.
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Tungstates are inclined to obtain large Raman coefficients (�?Raman scattering). For that reason, they might deliver significant Raman gain at moderate optical intensities. It is achievable to make use of the laser crystal itself as being a Raman converter.
For tungstates, the ytterbium doping concentration can be extremely superior devoid of major quenching as the replaced ions have a really very similar ion radius, and here the inter-ion length is fairly significant.
By substituting yttrium with ytterbium inside the crystal lattice of Yb:KYW due to the related sizes of such chemical things as many as one hundred% of Yb-doping might be obtained.
The thermal conductivity of popular double tungstates is on the order to three–4 W/(K m) �?which isn't bad as opposed with other laser crystals (Whilst many times below for YAG), and fairly massive compared Together with the thermal conductivity of typical Eyeglasses.
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Yb:KYW crystal (Yb-doped potassium yttrium tungstate) in comparison to its counterpart Yb:KGW, is really a remarkable product that performs a vital part in laser engineering. Its primary functionality is usually to make ultrashort pulses of light, spanning just a couple hundred femtoseconds.
Talk to RP Photonics for just about any advice regarding tungstate lasers, together with femtosecond lasers and significant-electrical power lasers.