The Definitive Guide to KYW Crystal
The Definitive Guide to KYW Crystal
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The Yb-doped potassium yttrium tungstate (Yb:KYW) crystal, in comparison to its counterpart Yb:KGW, is really a exceptional materials that plays a crucial position in laser know-how. Its Most important functionality should be to deliver ultrashort pulses of sunshine, spanning just a couple hundred femtoseconds.
Femtosecond laser determined by Yb:KYW crystals with suppression of spectral narrowing in a regenerative amplifier by spectral profiling of the pulse
FIG. 4. Autocorrelation functionality of the pulse 共a兲and spectrum 共b兲of a laser with an oblong Lively factor for an output power of seven hundred mW. The width of
Optical layout of the laser with direct pumping with the radiation of semiconductor injection lasers. LD is really an IPG Photonics laser diode with fiber output in the radiation, WP is a 50 percent-wave plate, CL is really a collimating lens, FL is often a focusing lens, AE is undoubtedly an Energetic element 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 can be a semiconductor saturable-absorber mirror.
Adhesion Exam Compliant with MIL-C-675C army expectations, an adhesion take a look at associated implementing a tape that satisfies LT-ninety technical specs on to the lens movie layer. The tape was affixed thoroughly and then taken out vertically. This process was performed three times, resulting in no blistering or peeling.
Raman, luminescence and transmission spectra reveal optical functions owing on the existence of thulium ions, and as a consequence the materials might be more researched while in the scope of laser and luminescence programs.
5 mm apart from the middle with the beam caustic. So that you can Look at the method matching simulation, we carried out the experiment with Ng-Reduce crystal oscillator, which was developed Beforehand and in a exact same condition with simulation click here [eleven]. As shown in Determine 3(b) with pink dots and line, the CW output electric power is extremely depending on the position of laser crystal as well as experimental end result coincides nicely with simulation result. Being a note, multimode operation happened in experiment when the dimensions of the pump beam is more substantial than TEM00 cavity manner and it leads to increased CW output ability inside the displacement area underneath three.five mm.
For tungstates, the ytterbium doping concentration can be extremely higher without the need of considerable quenching as the replaced ions have an extremely similar ion radius, along with the inter-ion length is comparatively large.
By substituting yttrium with ytterbium from the crystal lattice of Yb:KYW due to identical dimensions of those chemical components up to a hundred% of Yb-doping may be attained.
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Yb:KYW crystal (Yb-doped potassium yttrium tungstate) compared to its counterpart Yb:KGW, is really a exceptional materials that plays an important part in laser technological innovation. Its Major perform would be to produce ultrashort pulses of sunshine, spanning only a few hundred femtoseconds.
Check with RP Photonics for just about any information regarding tungstate lasers, including femtosecond lasers and substantial-energy lasers.