An Unbiased View of KYW Crystal

An Unbiased View of KYW Crystal

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The Yb-doped potassium yttrium tungstate (Yb:KYW) crystal, in comparison with its counterpart Yb:KGW, is often a amazing product that performs a vital purpose in laser technological know-how. Its primary function is to generate ultrashort pulses of sunshine, spanning just a couple hundred femtoseconds.

Femtosecond laser dependant on Yb:KYW crystals with suppression of spectral narrowing within a regenerative amplifier by spectral profiling of the heart beat

Shade-coded reflectivity of the Bragg mirror to be a function of wavelength and angle in the incident beam.

This paper describes a femtosecond laser regenerative amplifier according to two Yb:KYW crystals with immediate longitudinal pumping by highly effective linear arrays of semiconductor injection lasers acquiring fiber output. To avoid spectral narrowing for the duration of amplification along with the corresponding lengthening from the amplified pulse when it is compressed, a combination of two Yb:KYW crystals were made use of, Together with the spectral maxima in the amplification shifted relative to one another and with spectral profiling of your amplified radiation.

In advance of the event of Nd:YAG, Nd3+:CaWO4 was a very important unusual-earth-doped laser gain medium. It was in truth Employed in the initial repeatedly operating crystal laser.

FIG. 1. Optical format of the laser with direct pumping with the radiation of semiconductor injection lasers. LD is really an IPG Photonics laser diode with fiber output

five mm aside from the middle from the beam caustic. As a way to Examine the method matching simulation, we executed the experiment with Ng-Slice crystal oscillator, which was made Formerly and in a exact same situation with simulation [11]. As proven in Figure 3(b) with red dots and line, the CW output electricity is highly depending on the placement of laser click here crystal plus the experimental final result coincides effectively with simulation outcome. As a Notice, multimode Procedure occurred in experiment once the dimension on the pump beam is much larger than TEM00 cavity manner and it results in larger CW output electric power during the displacement location underneath three.5 mm.

... at fifty percent-height were being generated in a learn oscillator with selfsynchronization on the axial modes, described inside our previously post. 21 The new edition on the laser, as opposed to that explained within our before report, utilized an Yb:KYW crystal having an N pcut (optical axis N p on the index ellipsoid was parallel to the propagation course from the laser radiation), Along with the polarization on the created radiation directed along the N m axis.

By substituting yttrium with ytterbium in the crystal lattice of Yb:KYW due to the identical measurements of these chemical features as many as 100% of Yb-doping could be obtained.

While ytterbium-doped laser gain media generally show a little quantum defect, ytterbium-doped tungstates allow for for significantly small values. For example, a 1030-nm Yb:YAG laser would normally be pumped around 940 nm, Whilst Yb:KGW or Yb:KYW may very well be most successfully pumped all around 981 nm.

Li2WO4-WO3 flux was properly used decreasing the growth temperature underneath 900 oC. In accordance with solitary crystal x-ray measurements, the crystal corresponds into the P2/n space group.

Yb:KYW crystal (Yb-doped potassium yttrium tungstate) in comparison to its counterpart Yb:KGW, is really a outstanding material that performs a significant position in laser technological innovation. Its Principal perform is to deliver ultrashort pulses of light, spanning just a few hundred femtoseconds.

Question RP Photonics for any information regarding tungstate lasers, which includes femtosecond lasers and higher-ability lasers.