The Ultimate Guide To KYW Crystal
The Ultimate Guide To KYW Crystal
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In simple conditions, the Yb:KYW crystal has uncovered its specialized niche in superior-power laser apps resulting from its capacity to make higher Power ultrashort laser pulses whilst maintaining a compact sizing. The interplay of its attributes �?seamless ytterbium substitution, strong absorption properties, ultrashort pulse era and performance in Strength conversion �?positions the Yb:KYW crystal as being a cornerstone during the laser engineering, masking varied fields starting from scientific analysis to industrial purposes.
The comparison with glasses is appropriate since the large attain bandwidth lets e.g. tungstate femtosecond lasers and tunable lasers to compete with glass lasers.
Femtosecond laser dependant on Yb:KYW crystals with suppression of spectral narrowing inside a regenerative amplifier by spectral profiling of the heart beat
FIG. four. Autocorrelation perform of the heart beat 共a兲and spectrum 共b兲of a laser with a rectangular Lively aspect for an output electric power of 700 mW. The width of
This paper describes a femtosecond laser regenerative amplifier depending 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 during amplification as well as the corresponding lengthening from the amplified pulse when it can be compressed, a combination of two Yb:KYW crystals were employed, While using the spectral maxima in the amplification shifted relative to one another and with spectral profiling of your amplified radiation.
Soon after air drying and subsequent cleansing which has a cotton fabric soaked in alcohol, the film surface showed no signs of peeling or scratches.
FIG. 1. Optical structure of a laser with direct pumping With all the radiation of semiconductor injection lasers. LD is an IPG Photonics laser diode with fiber output
5 mm aside from the center of the beam caustic. In order to Look at the mode matching simulation, we executed the experiment with Ng-Slice crystal oscillator, more info which was designed previously As well as in a very same condition with simulation [11]. As revealed in Figure three(b) with crimson dots and line, the CW output power is very dependent on the posture of laser crystal along with the experimental result coincides very well with simulation result. For a Take note, multimode Procedure happened in experiment once the dimensions of the pump beam is more substantial than TEM00 cavity manner and it leads to increased CW output ability within the displacement region under three.five mm.
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By substituting yttrium with ytterbium from the crystal lattice of Yb:KYW due to the similar sizes of such chemical features up to one hundred% of Yb-doping could possibly be accomplished.
When ytterbium-doped laser acquire media usually show a small quantum defect, ytterbium-doped tungstates allow for for notably small values. One example is, a 1030-nm Yb:YAG laser would Generally be pumped close to 940 nm, Whilst Yb:KGW or Yb:KYW may be most competently pumped around 981 nm.
Li2WO4-WO3 flux was correctly applied reducing the growth temperature underneath 900 oC. As outlined by one crystal x-ray measurements, the crystal corresponds into the P2/n House team.
Yb:KYW crystal (Yb-doped potassium yttrium tungstate) in comparison with its counterpart Yb:KGW, is actually a impressive product that performs a significant position in laser engineering. Its Main functionality is always to deliver ultrashort pulses of light, spanning just a couple hundred femtoseconds.
Inquire RP Photonics for almost any guidance relating to tungstate lasers, such as femtosecond lasers and substantial-power lasers.