A Simple Key For KYW Crystal Unveiled

A Simple Key For KYW Crystal Unveiled

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The obtain bandwidth e.g. of Yb:KGW and Yb:KYW is extremely massive when compared with that of Yb:YAG. This allows for vast wavelength tunability and for much shorter pulse durations from manner-locked lasers. Values well below 100 fs are actually achieved with passive manner locking.

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time. Crystals in the compound melts congruently at 1007 oC, even so melt crystallization of top of the range crystal is unachievable because of phase changeover at ~920 oC. The highest seeded Resolution process from

FIG. four. Autocorrelation purpose of the heart beat 共a兲and spectrum 共b兲of the laser with a rectangular active ingredient for an output ability of seven-hundred mW. The width of

This paper describes a femtosecond laser regenerative amplifier dependant on two Yb:KYW crystals with direct longitudinal pumping by highly effective linear arrays of semiconductor injection lasers possessing fiber output. To forestall spectral narrowing during amplification along with the corresponding lengthening of the amplified pulse when it is actually compressed, a mix of two Yb:KYW crystals were applied, Using the spectral maxima of the amplification shifted relative to each other and with spectral profiling of your amplified radiation.

Right after air drying and subsequent cleansing using a cotton fabric soaked in Alcoholic beverages, the film surface area showed no signs of peeling or scratches.

PDF Yb:KGW and Yb:KYW crystals have wide emission bandwidths and they are used as lasing components to generate ultrashort (~ 100-two hundred fs) substantial ability pulses. Immediate pump of Yb:KGW/KYW crystals with laser diodes running at 981 nm supports compact laser techniques.

five mm aside from the middle of your beam caustic. In an effort to Check out the manner matching simulation, we performed the experiment with Ng-Reduce crystal oscillator, which was formulated Beforehand As well as in a exact same problem with simulation [11]. As more info shown in Figure 3(b) with red dots and line, the CW output electricity is very depending on the posture of laser crystal as well as experimental result coincides perfectly with simulation outcome. As being a Be aware, multimode operation happened in experiment if the dimensions on the pump beam is much larger than TEM00 cavity mode and it leads to greater CW output electrical power within the displacement location beneath three.5 mm.

For tungstates, the ytterbium doping concentration can be quite large without substantial quenching because the changed ions have an exceedingly similar ion radius, and the inter-ion length is fairly substantial.

By substituting yttrium with ytterbium during the crystal lattice of Yb:KYW as a result of related sizes of those chemical elements approximately a hundred% of Yb-doping could possibly be obtained.

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Yb:KYW crystal (Yb-doped potassium yttrium tungstate) in comparison to its counterpart Yb:KGW, is a extraordinary materials that performs a crucial role in laser technological know-how. Its Principal function is usually to produce ultrashort pulses of light, spanning just some hundred femtoseconds.

Question RP Photonics for any tips about tungstate lasers, which includes femtosecond lasers and significant-energy lasers.