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The Yb-doped potassium yttrium tungstate (Yb:KYW) crystal, compared to its counterpart Yb:KGW, can be a outstanding materials that plays a crucial purpose in laser technology. Its Major operate will be to deliver ultrashort pulses of sunshine, spanning just a couple hundred femtoseconds.
The Yb:KYW crystal’s proficiency in mild absorption at all-around 981 nm helps make the crystal compatible for diode pumping. It is even more Increased by its remarkable efficiency in this process, coupled with its reduced quantum defect.
FIG. four. Autocorrelation function of the heartbeat 共a兲and spectrum 共b兲of the laser with a rectangular Energetic ingredient for an output electricity of seven-hundred mW. The width of
This paper describes a femtosecond laser regenerative amplifier according to two Yb:KYW crystals with immediate longitudinal pumping by effective linear arrays of semiconductor injection lasers having fiber output. To forestall spectral narrowing during amplification along with the corresponding lengthening from the amplified pulse when it can be compressed, a combination of two Yb:KYW crystals have been made use of, Together with the spectral maxima with the amplification shifted relative to each other and with spectral profiling in the amplified radiation.
Just after air drying and subsequent cleansing using a cotton fabric soaked in alcohol, the film floor confirmed no indications of peeling or scratches.
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Tungstates are likely to have higher Raman coefficients (�?Raman scattering). For that reason, they might generate significant Raman acquire at moderate optical intensities. It is achievable to make use of the laser crystal by itself like a Raman converter.
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Significant-energy repetitively pulsed ytterbium lasers with supershort pulse width and immediate diode pumping for technological and biomedical purposes
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Yb:KYW crystal (Yb-doped potassium yttrium tungstate) when compared to its counterpart Yb:KGW, is usually a impressive content that performs a significant position in laser engineering. Its primary purpose is always to produce ultrashort pulses of sunshine, spanning just a few hundred femtoseconds.
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