The smart Trick of KYW Crystal That No One is Discussing
The smart Trick of KYW Crystal That No One is Discussing
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The gain bandwidth e.g. of Yb:KGW and Yb:KYW is quite substantial as opposed with that of Yb:YAG. This enables for extensive wavelength tunability and for A great deal shorter pulse durations from method-locked lasers. Values nicely under 100 fs have already been obtained with passive mode locking.
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Femtosecond laser depending on Yb:KYW crystals with suppression of spectral narrowing within a regenerative amplifier by spectral profiling of the heart beat
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This paper describes a femtosecond laser regenerative amplifier determined by two Yb:KYW crystals with direct longitudinal pumping by potent linear arrays of semiconductor injection lasers getting fiber output. To prevent spectral narrowing during amplification along with the corresponding lengthening from the amplified pulse when it is compressed, a mix of two Yb:KYW crystals had been used, Along with the spectral maxima on the amplification shifted relative to each other and with spectral profiling on the amplified radiation.
The monoclinic crystal buildings results in a normal birefringence, helping to stay clear of thermally induced polarization rotation and depolarization decline.
Raman, luminescence and transmission spectra reveal optical features owing to the existence of thulium ions, and as a consequence the elements may be more studied during the scope of laser and luminescence apps.
Spatial composition on the beam as well as the corresponding depth profiles I with the output from the laser.
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... Not merely the placement of crystal while in the cavity but will also the amplification axis of crystal influences the laser operation significantly, as the absorption and emission cross sections with the crystal are very distinct according to the orientation with the crystal.
Though ytterbium-doped laser gain media usually exhibit a small quantum defect, ytterbium-doped tungstates enable for notably modest values. For example, a 1030-nm Yb:YAG laser would Typically be pumped close to 940 nm, whereas Yb:KGW or Yb:KYW might be most efficiently pumped around 981 nm.
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Yb:KYW crystal (Yb-doped potassium yttrium tungstate) compared to its click here counterpart Yb:KGW, is a remarkable material that performs a very important job in laser engineering. Its Main function is to deliver ultrashort pulses of light, spanning just a few hundred femtoseconds.
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