Top KYW Crystal Secrets
Top KYW Crystal Secrets
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time. Crystals of your compound melts congruently at 1007 oC, nonetheless melt crystallization of high quality crystal is difficult resulting from stage transition at ~920 oC. The very best seeded Answer technique from
FIG. four. Autocorrelation function of the heart beat 共a兲and spectrum 共b兲of a laser with a rectangular Lively element for an output electricity of seven-hundred mW. The width of
This paper describes a femtosecond laser regenerative amplifier based upon two Yb:KYW crystals with immediate longitudinal pumping by potent linear arrays of semiconductor injection lasers having fiber output. To avoid spectral narrowing in the course of amplification as well as corresponding lengthening with the amplified pulse when it truly is compressed, a mix of two Yb:KYW crystals had been employed, Together with the spectral maxima from the amplification shifted relative to one another and with spectral profiling on the amplified radiation.
The monoclinic crystal structures results in a natural birefringence, helping to steer clear of thermally induced polarization rotation and depolarization loss.
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Tungstates tend to get large Raman coefficients (�?Raman scattering). Thus, they are able to generate substantial Raman acquire at average optical intensities. It can be done to use the laser crystal itself for a Raman converter.
... at 50 %-height ended up created within a learn oscillator with selfsynchronization of the axial modes, explained inside our earlier short article. 21 The new version in the laser, unlike that described within our previously short article, utilized an Yb:KYW crystal using an N pcut (optical axis N p on the index ellipsoid was parallel into the propagation direction from the laser radiation), Along with the polarization of the created radiation directed together the N m axis.
Even so, as soon as Nd3+:YAG turned commercially readily available, the fascination in CaWO4 dropped sharply. In later decades, specified other tungstate crystals started to draw in lots of notice.
The thermal conductivity of common double tungstates is on the buy to three–4 W/(K m) �?which isn't poor in contrast with other laser crystals (although many occasions less than for YAG), and reasonably massive in contrast Using the thermal conductivity of common glasses.
Li2WO4-WO3 flux was productively utilized reducing read more The expansion temperature under 900 oC. In line with one crystal x-ray measurements, the crystal corresponds towards the P2/n space team.
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Question RP Photonics for virtually any advice relating to tungstate lasers, which includes femtosecond lasers and large-electrical power lasers.