Considerations To Know About KYW Crystal
Considerations To Know About KYW Crystal
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The acquire bandwidth e.g. of Yb:KGW and Yb:KYW is extremely significant compared with that of Yb:YAG. This permits for vast wavelength tunability and for much shorter pulse durations from method-locked lasers. Values well beneath one hundred fs are reached with passive manner locking.
The Yb-doped potassium yttrium tungstate (Yb:KYW) crystal, when compared with its counterpart Yb:KGW, is often a extraordinary materials that plays a significant function in laser technology. Its Main function should be to create ultrashort pulses of light, spanning just a couple hundred femtoseconds.
Femtosecond laser depending on Yb:KYW crystals with suppression of spectral narrowing inside of a regenerative amplifier by spectral profiling of the pulse
FIG. four. Autocorrelation operate of the pulse 共a兲and spectrum 共b兲of the laser with a rectangular Lively element for an output energy of seven-hundred mW. The width of
Optical structure of a laser with immediate pumping While using the radiation of semiconductor injection lasers. LD can be an IPG Photonics laser diode with fiber output with the radiation, WP can be a half-wave plate, CL is a collimating lens, FL is often a focusing lens, AE is definitely more info an Lively component comprised of an Yb:KYW crystal, DM is really a spherical dichroic mirror, M1-M6 are the cavity mirrors, OC could be the output mirror, and SAM is really a semiconductor saturable-absorber mirror.
The monoclinic crystal constructions ends in a pure birefringence, helping to keep away from thermally induced polarization rotation and depolarization reduction.
FIG. one. Optical structure of the laser with immediate pumping Together with the radiation of semiconductor injection lasers. LD is undoubtedly an IPG Photonics laser diode with fiber output
Spatial structure from the beam as well as the corresponding depth profiles I within the output of the laser.
For tungstates, the ytterbium doping focus can be very significant without having significant quenching since the replaced ions have an exceptionally equivalent ion radius, along with the inter-ion length is relatively significant.
By substituting yttrium with ytterbium within the crystal lattice of Yb:KYW mainly because of the related dimensions of these chemical elements nearly one hundred% of Yb-doping could possibly be realized.
The thermal conductivity of widespread double tungstates is of the get to 3–4 W/(K m) �?which is not poor as opposed with other laser crystals (Despite the fact that quite a few occasions under for YAG), and fairly substantial compared with the thermal conductivity of regular glasses.
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Inquire RP Photonics for any tips about tungstate lasers, which includes femtosecond lasers and superior-electricity lasers.