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The Yb-doped potassium yttrium tungstate (Yb:KYW) crystal, in comparison with its counterpart Yb:KGW, can be a impressive content that plays an important job in laser know-how. Its Major operate will be to deliver ultrashort pulses of light, spanning just a couple hundred femtoseconds.

We present a twin-crystal Yb:KGW laserthat iscapable to function to be a Q-switched oscillator with output ability as much as 24 W and pulse size of twenty ns,or as a regenerative amplifier with output ability around 21 W and pulse length below two hundred fs right after compression of chirped pulses. Both lasers have superb beam high quality with beam parameter M2

Color-coded reflectivity of a Bragg mirror for a function of wavelength and angle of your incident beam.

Optical layout of a laser with direct pumping Together with the radiation of semiconductor injection lasers. LD is undoubtedly an IPG Photonics laser diode with fiber output with the radiation, WP is often a 50 %-wave plate, CL is actually a collimating lens, FL is often a focusing lens, AE is definitely an active component comprised of an Yb:KYW crystal, DM is a spherical dichroic mirror, M1-M6 are the more info cavity mirrors, OC will be the output mirror, and SAM can be a semiconductor saturable-absorber mirror.

The monoclinic crystal constructions leads to a purely natural birefringence, helping to avoid thermally induced polarization rotation and depolarization reduction.

PDF Yb:KGW and Yb:KYW crystals have broad emission bandwidths and therefore are made use of as lasing elements to generate ultrashort (~ a hundred-two hundred fs) large ability pulses. Immediate pump of Yb:KGW/KYW crystals with laser diodes working at 981 nm supports compact laser methods.

Tungstates are likely to have significant Raman coefficients (�?Raman scattering). As a result, they could generate important Raman acquire at moderate optical intensities. It is achievable to utilize the laser crystal by itself as being a Raman converter.

For tungstates, the ytterbium doping concentration can be very significant with no major quenching since the changed ions have an exceedingly comparable ion radius, plus the inter-ion distance is relatively huge.

Higher-electricity repetitively pulsed ytterbium lasers with supershort pulse width and immediate diode pumping for technological and biomedical apps

Although ytterbium-doped laser gain media commonly exhibit a little quantum defect, ytterbium-doped tungstates make it possible for for specially little values. As an example, a 1030-nm Yb:YAG laser would Commonly be pumped all over 940 nm, whereas Yb:KGW or Yb:KYW may very well be most efficiently pumped close to 981 nm.

This tandem of characteristics has considerably-achieving implications, specifically in the development of compact yet powerfull lasers.

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