5 Simple Statements About KYW Crystal Explained
5 Simple Statements About KYW Crystal Explained
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The get bandwidth e.g. of Yb:KGW and Yb:KYW is very substantial in comparison with that of Yb:YAG. This allows for extensive wavelength tunability and for Substantially shorter pulse durations from manner-locked lasers. Values well under a hundred fs have already been reached with passive mode locking.
The comparison with glasses is acceptable Considering that the huge obtain bandwidth enables e.g. tungstate femtosecond lasers and tunable lasers to contend with glass lasers.
time. Crystals in the compound melts congruently at 1007 oC, nevertheless soften crystallization of top quality crystal is not possible due to section transition at ~920 oC. The very best seeded solution system from
FIG. 4. Autocorrelation operate of the pulse 共a兲and spectrum 共b兲of the laser with a rectangular Lively component for an output power of seven hundred mW. The width of
This paper describes a femtosecond laser regenerative amplifier based upon two Yb:KYW crystals with direct longitudinal pumping by effective linear arrays of semiconductor injection lasers possessing fiber output. To avoid spectral narrowing in the course of amplification as well as the corresponding lengthening in the amplified pulse when it's compressed, a mix of two Yb:KYW crystals ended up employed, with the spectral maxima with the amplification shifted relative to each other and with spectral profiling with the amplified radiation.
Just before the event of Nd:YAG, Nd3+:CaWO4 was a very important exceptional-earth-doped laser acquire medium. It absolutely was actually Utilized in the first repeatedly working crystal laser.
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A higher brightnessQ-switched oscillator and regenerative amplifier dependant on a dual-crystal Yb:KGW laser
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... Don't just the position of crystal within the cavity but additionally the amplification axis of crystal impacts the laser operation significantly, because the absorption and emission cross sections from the crystal are fairly various according to the orientation of the crystal.
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This tandem of attributes has considerably-reaching implications, specially in the construction of compact nevertheless powerfull lasers.
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