5 Easy Facts About KYW Crystal Described
5 Easy Facts About KYW Crystal Described
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The obtain bandwidth e.g. of Yb:KGW and Yb:KYW may be very big when compared with that of Yb:YAG. This permits for wide wavelength tunability and for Considerably shorter pulse durations from manner-locked lasers. Values perfectly below 100 fs have already been reached with passive method locking.
The Yb-doped potassium yttrium tungstate (Yb:KYW) crystal, as compared to its counterpart Yb:KGW, is often a outstanding substance that performs a crucial purpose in laser technologies. Its Principal functionality would be to make ultrashort pulses of light, spanning just a couple hundred femtoseconds.
time. Crystals with the compound melts congruently at 1007 oC, on the other hand soften crystallization of top quality crystal is unattainable because of section transition at ~920 oC. The best seeded Remedy method from
FIG. four. Autocorrelation function of the heartbeat 共a兲and spectrum 共b兲of a laser with an oblong Lively factor for an output electricity of seven hundred mW. The width of
Optical format of a laser with immediate pumping Together with the radiation of semiconductor injection lasers. LD is surely an IPG Photonics laser diode with fiber output from the radiation, WP is really a 50 percent-wave plate, CL is really a collimating lens, FL can be a focusing lens, AE is undoubtedly an Lively component constructed from an Yb:KYW crystal, DM is really a spherical dichroic mirror, M1-M6 tend to be the cavity mirrors, OC will be the output mirror, and SAM is actually a semiconductor saturable-absorber mirror.
The monoclinic crystal constructions leads to a all-natural birefringence, assisting to prevent thermally induced polarization rotation and depolarization reduction.
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five mm besides the middle on the beam caustic. As a way to check the method matching simulation, we done the experiment with Ng-cut crystal oscillator, which was produced previously As well as in a same affliction with simulation [eleven]. As revealed in Figure three(b) with pink dots and line, the CW output electric power is extremely dependent on the placement of laser crystal as well as the experimental consequence coincides very well with simulation outcome. As being a Be aware, multimode operation occurred in experiment once the dimension in the pump beam is more substantial than TEM00 cavity method and it causes increased CW output power while in the displacement location beneath 3.five mm.
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... Don't just the situation of crystal from the cavity but will also the amplification axis of crystal impacts the laser operation significantly, as the absorption and emission cross sections from the crystal are pretty diverse in accordance with the orientation in the crystal.
Although ytterbium-doped laser acquire media usually exhibit a little quantum defect, ytterbium-doped tungstates allow for notably small values. One example is, a 1030-nm Yb:YAG laser would Typically be pumped all around 940 nm, Whilst Yb:KGW or Yb:KYW could be most proficiently pumped all over 981 nm.
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Yb:KYW crystal (Yb-doped potassium yttrium tungstate) compared to its counterpart Yb:KGW, is often a remarkable content that performs a very important function in laser technological know-how. Its primary function is always to create ultrashort pulses of light, spanning just a few hundred femtoseconds.
Question RP Photonics for just about any suggestions concerning tungstate lasers, including femtosecond lasers and superior-ability lasers.