KYW Crystal Options
KYW Crystal Options
Blog Article
In functional conditions, the Yb:KYW crystal has discovered its market in large-energy laser purposes resulting from its power to deliver superior Electrical power ultrashort laser pulses while maintaining a compact measurement. The interplay of its features �?seamless ytterbium substitution, sturdy absorption attributes, ultrashort pulse generation and effectiveness in Power conversion �?positions the Yb:KYW crystal like a cornerstone in the laser technological know-how, covering assorted fields ranging from scientific investigate to industrial programs.
This exceptional characteristic of ultrafast pulses allows nonlinear optical interaction with tissue at small Over-all exposure, and drives applications which include deep-tissue multiphoton microscopy and substantial-precision eye surgical procedure
The Yb:KYW crystal’s proficiency in gentle absorption at all over 981 nm tends to make the crystal compatible for diode pumping. It is more Increased by its remarkable performance in this method, coupled with its reduced quantum defect.
FIG. four. Autocorrelation operate of the heartbeat 共a兲and spectrum 共b兲of the laser with a rectangular Lively aspect for an output electrical power of seven-hundred mW. The width of
By substituting yttrium with ytterbium within the crystal lattice of Yb:KYW mainly because of the equivalent measurements of these chemical aspects as many as 100% of Yb-doping can be accomplished. This exclusive characteristic permits ytterbium to take the location of yttrium with practically no disruption towards the crystal’s lattice.
Ahead of the development of Nd:YAG, Nd3+:CaWO4 was a very important uncommon-earth-doped laser acquire medium. It had been in truth Utilized in the first continuously working crystal laser.
FIG. one. Optical structure of a laser with direct pumping Along with the radiation of semiconductor injection lasers. LD is definitely an IPG Photonics laser diode with fiber output
Tungstates have a tendency to acquire high Raman coefficients (�?Raman scattering). As a result, they will crank out sizeable Raman attain at average optical intensities. It can be done to utilize the laser crystal by itself being a Raman converter.
For tungstates, the ytterbium doping concentration can be extremely large without the need of substantial quenching as the replaced ions have a really similar ion radius, as well as inter-ion click here distance is pretty big.
By substituting yttrium with ytterbium within 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.
When ytterbium-doped laser attain media generally exhibit a small quantum defect, ytterbium-doped tungstates allow for specifically tiny values. By way of example, a 1030-nm Yb:YAG laser would Generally be pumped all around 940 nm, While Yb:KGW or Yb:KYW could be most efficiently pumped all-around 981 nm.
Li2WO4-WO3 flux was properly applied minimizing The expansion temperature below 900 oC. In line with one crystal x-ray measurements, the crystal corresponds to the P2/n Area group.
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