Helping The others Realize The Advantages Of KYW Crystal
The achieve bandwidth e.g. of Yb:KGW and Yb:KYW may be very huge compared with that of Yb:YAG. This allows for broad wavelength tunability and for Significantly shorter pulse durations from method-locked lasers. Values properly underneath a hundred fs are realized with passive method locking.That is a preview of subscription written content, log in by way of an establishment to examine obtain. Entry this informative article
We present a dual-crystal Yb:KGW laserthat iscapable to function like a Q-switched oscillator with output electric power approximately 24 W and pulse length of twenty ns,or being a regenerative amplifier with output electricity approximately 21 W and pulse period down below 200 fs just after compression of chirped pulses. Both of those lasers have exceptional beam high-quality with beam parameter M2
FIG. 4. Autocorrelation function of the heart beat 共a兲and spectrum 共b兲of a laser with an oblong Lively factor for an output electricity of 700 mW. The width of
This paper describes a femtosecond laser regenerative amplifier depending on two Yb:KYW crystals with direct longitudinal pumping by highly effective linear arrays of semiconductor injection lasers possessing fiber output. To avoid spectral narrowing in the course of amplification and also the corresponding lengthening with the amplified pulse when it truly is compressed, a combination of two Yb:KYW crystals had been utilised, With all the spectral maxima on the amplification shifted relative to one another and with spectral profiling on the amplified radiation.
Soon after air drying and subsequent cleansing using a cotton fabric soaked in alcohol, the film floor showed no signs of peeling or more info scratches.
Raman, luminescence and transmission spectra expose optical functions owing to the existence of thulium ions, and thus the materials can be additional examined inside the scope of laser and luminescence purposes.
Tungstates are inclined to obtain high Raman coefficients (�?Raman scattering). Consequently, they're able to make major Raman attain at average optical intensities. It can be done to utilize the laser crystal alone for a Raman converter.
... at half-peak were being produced inside of a master oscillator with selfsynchronization with the axial modes, described within our before post. 21 The new version with the laser, unlike that described within our before article, utilised an Yb:KYW crystal having an N pcut (optical axis N p from the index ellipsoid was parallel on the propagation way of the laser radiation), With all the polarization on the created radiation directed alongside the N m axis.
... Don't just the posture of crystal within the cavity but additionally the amplification axis of crystal impacts the laser operation greatly, since the absorption and emission cross sections of your crystal are very different based on the orientation from the crystal.
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Yb:KYW crystal (Yb-doped potassium yttrium tungstate) compared to its counterpart Yb:KGW, is usually a extraordinary content that plays a vital position in laser technology. Its Main function is always to make ultrashort pulses of light, spanning only a few hundred femtoseconds.
Ask RP Photonics for almost any suggestions concerning tungstate lasers, like femtosecond lasers and substantial-electrical power lasers.