The KYW Crystal Diaries
The KYW Crystal Diaries
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Femtosecond laser according to Yb:KYW crystals with suppression of spectral narrowing within a regenerative amplifier by spectral profiling of the pulse
FIG. four. Autocorrelation functionality of the heartbeat 共a兲and spectrum 共b兲of the laser with an oblong Lively factor for an output energy of seven hundred mW. The width of
Optical format of a laser with immediate pumping Along with the radiation of semiconductor injection lasers. LD is really an IPG Photonics laser diode with fiber output from the radiation, WP is usually a 50 percent-wave plate, CL is usually a collimating lens, FL can be a concentrating lens, AE is definitely an Energetic ingredient made out of an Yb:KYW crystal, DM is a spherical dichroic mirror, M1-M6 would be the cavity mirrors, OC is the output mirror, and SAM is usually a semiconductor saturable-absorber mirror.
Just before the development of Nd:YAG, Nd3+:CaWO4 was a vital scarce-earth-doped laser gain medium. It absolutely was the truth is used in the main continually operating crystal laser.
Raman, luminescence and transmission spectra expose optical characteristics owing for the existence of thulium ions, and therefore the supplies can be additional examined inside the scope of laser and luminescence purposes.
A substantial brightnessQ-switched oscillator and regenerative amplifier dependant on a dual-crystal Yb:KGW laser
... at 50 percent-peak had been generated within a master oscillator with selfsynchronization with the axial modes, click here explained within our before article. 21 The new version of your laser, unlike that described within our before article, employed an Yb:KYW crystal by having an N pcut (optical axis N p with the index ellipsoid was parallel on the propagation route with the laser radiation), with the polarization from the generated radiation directed together the N m axis.
... Not only the placement of crystal during the cavity but in addition the amplification axis of crystal affects the laser Procedure considerably, because the absorption and emission cross sections of the crystal are very various based on the orientation from the crystal.
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This tandem of characteristics has much-achieving implications, specially in the construction of compact but powerfull lasers.
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