KYW Crystal - An Overview
KYW Crystal - An Overview
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The get bandwidth e.g. of Yb:KGW and Yb:KYW is very significant as opposed with that of Yb:YAG. This allows for wide wavelength tunability and for much shorter pulse durations from method-locked lasers. Values properly under a hundred fs happen to be obtained with passive manner locking.
The comparison with Eyeglasses is acceptable since the large achieve bandwidth allows e.g. tungstate femtosecond lasers and tunable lasers to contend with glass lasers.
Femtosecond laser according to Yb:KYW crystals with suppression of spectral narrowing inside of a regenerative amplifier by spectral profiling of the heartbeat
Color-coded reflectivity of the Bragg mirror being a functionality of wavelength and angle from the incident beam.
Optical format of the laser with direct pumping with the radiation of semiconductor injection lasers. LD is definitely an IPG Photonics laser diode with fiber output with the radiation, WP is really a fifty percent-wave plate, CL is actually a collimating lens, FL is usually a focusing lens, AE is surely an Lively element made out of an Yb:KYW crystal, DM can be a spherical dichroic mirror, M1-M6 would be the cavity mirrors, OC will be the output mirror, and SAM can be a semiconductor saturable-absorber mirror.
The monoclinic crystal structures brings about a organic birefringence, helping to steer clear of thermally induced polarization rotation and depolarization reduction.
Raman, luminescence and transmission spectra reveal optical attributes owing to the existence of thulium ions, and thus the elements may be further researched within the scope of laser and luminescence applications.
A significant brightnessQ-switched oscillator and regenerative amplifier based on a dual-crystal Yb:KGW laser
For tungstates, the ytterbium doping focus can be very superior with no significant quenching because the replaced ions have an exceedingly identical ion radius, as well as inter-ion length is pretty massive.
By substituting yttrium with ytterbium during the crystal lattice of Yb:KYW due to the very similar get more info sizes of such chemical things as much as a hundred% of Yb-doping may very well be accomplished.
While ytterbium-doped laser attain media generally exhibit a little quantum defect, ytterbium-doped tungstates allow for for significantly compact values. As an example, a 1030-nm Yb:YAG laser would Ordinarily be pumped close to 940 nm, Whilst Yb:KGW or Yb:KYW could be most effectively pumped all over 981 nm.
This tandem of attributes has much-reaching implications, especially in the construction of compact yet powerfull lasers.
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