5 Tips about KYW Crystal You Can Use Today
5 Tips about KYW Crystal You Can Use Today
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The achieve bandwidth e.g. of Yb:KGW and Yb:KYW is incredibly massive compared with that of Yb:YAG. This allows for wide wavelength tunability and for much shorter pulse durations from mode-locked lasers. Values nicely beneath a hundred fs happen to be reached with passive mode locking.
The Yb-doped potassium yttrium tungstate (Yb:KYW) crystal, when compared with its counterpart Yb:KGW, is actually a impressive product that performs a very important position in laser technology. Its Principal perform is usually to crank out ultrashort pulses of sunshine, spanning only a few hundred femtoseconds.
The Yb:KYW crystal’s proficiency in gentle absorption at all over 981 nm tends to make the crystal like minded for diode pumping. It is further enhanced by its outstanding efficiency in this method, coupled with its very low quantum defect.
FIG. 4. Autocorrelation operate of the heartbeat 共a兲and spectrum 共b兲of the laser with a rectangular Lively element for an output power of 700 mW. The width of
Optical format of the laser with immediate pumping Together with the radiation of semiconductor injection lasers. LD can be an IPG Photonics laser diode with fiber output with the radiation, WP is really a 50 percent-wave plate, CL can be a collimating lens, FL is often a focusing lens, AE is undoubtedly an Energetic factor made out of an Yb:KYW crystal, DM is usually a spherical dichroic mirror, M1-M6 are classified as the cavity mirrors, here OC is definitely the output mirror, and SAM is usually a semiconductor saturable-absorber mirror.
Following air drying and subsequent cleaning that has a cotton fabric soaked in Alcoholic beverages, the film surface area confirmed no signs of peeling or scratches.
Raman, luminescence and transmission spectra expose optical characteristics owing into the existence of thulium ions, and so the materials could be further more analyzed inside the scope of laser and luminescence applications.
Tungstates are likely to get higher Raman coefficients (�?Raman scattering). As a result, they might produce major Raman obtain at reasonable optical intensities. It is achievable to make use of the laser crystal alone for a Raman converter.
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By substituting yttrium with ytterbium inside the crystal lattice of Yb:KYW mainly because of the equivalent dimensions of those chemical things as many as 100% of Yb-doping may be realized.
While ytterbium-doped laser acquire media typically exhibit a small quantum defect, ytterbium-doped tungstates enable for notably modest values. One example is, a 1030-nm Yb:YAG laser would Commonly be pumped all over 940 nm, While Yb:KGW or Yb:KYW could possibly be most effectively pumped around 981 nm.
Li2WO4-WO3 flux was efficiently utilized lessening the growth temperature beneath 900 oC. As outlined by one crystal x-ray measurements, the crystal corresponds to the P2/n space group.
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