Considerations To Know About KYW Crystal

Considerations To Know About KYW Crystal

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The comparison with glasses is suitable For the reason that huge obtain bandwidth lets e.g. tungstate femtosecond lasers and tunable lasers to contend with glass lasers.

We current a twin-crystal Yb:KGW laserthat iscapable to work as being a Q-switched oscillator with output electric power as much as 24 W and pulse size of 20 ns,or as being a regenerative amplifier with output ability as much as 21 W and pulse duration below 200 fs soon after compression of chirped pulses. Both lasers have superb beam good quality with beam parameter M2

FIG. four. Autocorrelation functionality of the heartbeat 共a兲and spectrum 共b兲of the laser with a rectangular Lively ingredient for an output electric power of seven hundred mW. The width of

Ultrafast lasers, with pulse widths of a few picoseconds (ten−12 s) or less, enable some time resolution essential in laser-enthusiastic fluorescence life span spectroscopy and imaging approaches.Furthermore, they supply significant pulse peak powers at significant repetition fees and average typical output powers.

Before the development of Nd:YAG, Nd3+:CaWO4 was a vital rare-earth-doped laser acquire medium. It had been the truth is Utilized in the primary consistently working crystal laser.

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five mm in addition to the center from the beam caustic. So that you can Verify the mode matching simulation, we done the experiment with Ng-cut crystal oscillator, which was formulated previously As well as in a exact same ailment with simulation [eleven]. As proven in Determine three(b) with red dots and line, the CW output electric power is extremely dependent on the place of laser crystal and also the experimental consequence coincides very well with simulation final result. As a Take note, multimode operation transpired in experiment if the measurement with the pump beam is larger sized than TEM00 cavity mode and it causes greater CW output electrical power from the displacement region below 3.five mm.

For tungstates, the ytterbium doping concentration can website be quite high without the need of considerable quenching since the changed ions have an incredibly very similar ion radius, and also the inter-ion length is comparatively huge.

... Don't just the situation of crystal during the cavity but in addition the amplification axis of crystal impacts the laser operation greatly, as the absorption and emission cross sections of the crystal are really various according to the orientation from the crystal.

Though ytterbium-doped laser gain media frequently exhibit a little quantum defect, ytterbium-doped tungstates let for notably compact values. For instance, a 1030-nm Yb:YAG laser would Ordinarily be pumped around 940 nm, While Yb:KGW or Yb:KYW could possibly be most competently pumped close to 981 nm.

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Talk to RP Photonics for almost any guidance about tungstate lasers, like femtosecond lasers and higher-power lasers.