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The Yb-doped potassium yttrium tungstate (Yb:KYW) crystal, in comparison to its counterpart Yb:KGW, can be a amazing substance that performs a crucial role in laser technological know-how. Its primary purpose will be to make ultrashort pulses of light, spanning just a few 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 function of the heartbeat 共a兲and spectrum 共b兲of a laser with a rectangular Energetic factor for an output energy of seven hundred mW. The width of
This paper describes a femtosecond laser regenerative amplifier based on two Yb:KYW crystals with immediate longitudinal pumping by strong linear arrays of semiconductor injection lasers getting fiber output. To forestall spectral narrowing for the duration of amplification and also the corresponding lengthening with the amplified pulse when it is actually compressed, a mix of two Yb:KYW crystals have been employed, While using the spectral maxima from the amplification shifted relative to one another and with spectral profiling of the amplified radiation.
The monoclinic crystal structures ends in a natural birefringence, helping to keep away from thermally induced polarization rotation and depolarization loss.
Raman, luminescence and transmission spectra reveal optical characteristics owing towards the existence of thulium ions, and therefore the resources could be further examined during the scope of laser and luminescence applications.
A significant brightnessQ-switched oscillator and regenerative amplifier based upon a twin-crystal Yb:KGW laser
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Having said that, at the time Nd3+:YAG grew to become commercially out there, the fascination in CaWO4 dropped sharply. In afterwards many years, specified other tungstate crystals began to bring in plenty of consideration.
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Li2WO4-WO3 flux was properly applied cutting down The expansion temperature underneath 900 oC. According to one crystal x-ray measurements, the crystal corresponds to your P2/n Area group.
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