The smart Trick of KYW Crystal That No One is Discussing
The smart Trick of KYW Crystal That No One is Discussing
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This special characteristic of ultrafast pulses allows nonlinear optical interaction with tissue at small overall publicity, and drives apps like deep-tissue multiphoton microscopy and substantial-precision eye surgery
time. Crystals in the compound melts congruently at 1007 oC, nonetheless melt crystallization of top of the range crystal is impossible due to section transition at ~920 oC. The top seeded Alternative strategy from
Shade-coded reflectivity of the Bragg mirror to be a purpose of wavelength and angle in the incident beam.
This paper describes a femtosecond laser regenerative amplifier based on two Yb:KYW crystals with immediate longitudinal pumping by highly effective linear arrays of semiconductor injection lasers obtaining fiber output. To avoid spectral narrowing in the course of amplification and also the corresponding lengthening of the amplified pulse when it truly is compressed, a combination of two Yb:KYW crystals were being applied, Together with the spectral maxima from the amplification shifted relative to one another and with spectral profiling from the amplified radiation.
The monoclinic crystal structures results in a natural birefringence, assisting to avoid thermally induced polarization rotation and depolarization decline.
PDF Yb:KGW and Yb:KYW crystals have wide emission bandwidths and they are applied as lasing products to crank out ultrashort (~ one hundred-200 fs) higher electricity pulses. Direct pump of Yb:KGW/KYW crystals with laser diodes functioning at 981 nm supports compact laser techniques.
5 mm aside from the middle with the beam caustic. So as to Check out the mode matching simulation, we performed the experiment with Ng-Slice crystal oscillator, which was formulated Formerly As well as in a very same problem with simulation [eleven]. As proven in Determine 3(b) with pink dots and line, the CW output power is very dependent on the posture of laser crystal plus the experimental outcome coincides very well with simulation final result. Being a note, multimode operation happened in experiment once the sizing in the pump beam is larger sized than TEM00 cavity mode and it will cause higher CW output electricity during the displacement region below three.five mm.
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By substituting yttrium with ytterbium during the crystal lattice of Yb:KYW due to the very similar measurements of these chemical features nearly one hundred% of Yb-doping might be obtained.
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Talk to RP Photonics for almost any guidance about tungstate lasers, which includes femtosecond lasers and high-electric power lasers.