Everything about KYW Crystal
Everything about KYW Crystal
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The comparison with glasses is suitable For the reason that substantial gain bandwidth enables e.g. tungstate femtosecond lasers and tunable lasers to compete with glass lasers.
We existing a twin-crystal Yb:KGW laserthat iscapable to function to be a Q-switched oscillator with output energy as much as 24 W and pulse duration of twenty ns,or as being a regenerative amplifier with output power as many as 21 W and pulse duration down below 200 fs following compression of chirped pulses. Both of those lasers have great beam top quality with beam parameter M2
Coloration-coded reflectivity of the Bragg mirror as being a operate of wavelength and angle of your incident beam.
This paper describes a femtosecond laser regenerative amplifier according to two Yb:KYW crystals with immediate longitudinal pumping by strong linear arrays of semiconductor injection lasers getting fiber output. To circumvent spectral narrowing for the duration of amplification and also the corresponding lengthening with the amplified pulse when it can be compressed, a combination of two Yb:KYW crystals were being utilised, Using the spectral maxima with the amplification shifted relative to each other and with spectral profiling with the amplified radiation.
Right after air drying and subsequent cleansing with a cotton cloth soaked in Alcoholic beverages, the movie surface area showed no indications of peeling or scratches.
FIG. one. Optical structure of the laser with direct pumping Using the radiation of semiconductor injection lasers. LD is definitely an IPG Photonics laser diode with fiber output
5 mm other than the center in the beam caustic. To be able to Check out the manner matching simulation, we performed the experiment with Ng-Slice crystal oscillator, which was developed Beforehand and in a very same condition with simulation [11]. As shown in Figure 3(b) with pink dots and line, the CW output ability is very depending on the placement of laser crystal along with the experimental result coincides perfectly with simulation outcome. For a Be read more aware, multimode Procedure occurred in experiment once the dimensions with the pump beam is larger sized than TEM00 cavity method and it will cause larger CW output ability during the displacement location under 3.five mm.
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Large-power repetitively pulsed ytterbium lasers with supershort pulse width and direct diode pumping for technological and biomedical applications
Whilst ytterbium-doped laser get media usually show a little quantum defect, ytterbium-doped tungstates let for particularly modest values. For example, a 1030-nm Yb:YAG laser would Generally be pumped all around 940 nm, whereas Yb:KGW or Yb:KYW could possibly be most competently pumped about 981 nm.
Li2WO4-WO3 flux was efficiently utilized lessening the growth temperature below 900 oC. According to single crystal x-ray measurements, the crystal corresponds towards the P2/n Area group.
Yb:KYW crystal (Yb-doped potassium yttrium tungstate) when compared with its counterpart Yb:KGW, is usually a outstanding materials that plays an essential function in laser technological know-how. Its Key purpose is always to produce ultrashort pulses of sunshine, spanning just a couple hundred femtoseconds.
Inquire RP Photonics for virtually any advice regarding tungstate lasers, such as femtosecond lasers and superior-electricity lasers.