A Simple Key For KYW Crystal Unveiled
A Simple Key For KYW Crystal Unveiled
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In sensible terms, the Yb:KYW crystal has observed its area of interest in substantial-electricity laser purposes resulting from its power to make higher Power ultrashort laser pulses though sustaining a compact size. The interaction of its attributes �?seamless ytterbium substitution, solid absorption traits, ultrashort pulse era and effectiveness in Electrical power conversion �?positions the Yb:KYW crystal as being a cornerstone in the laser technologies, covering diverse fields starting from scientific study to industrial applications.
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We present a dual-crystal Yb:KGW laserthat iscapable to operate for a Q-switched oscillator with output electrical power nearly 24 W and pulse size of twenty ns,or being a regenerative amplifier with output electricity as much as 21 W and pulse duration below two hundred fs soon after compression of chirped pulses. Equally lasers have exceptional beam high quality with beam parameter M2
Coloration-coded reflectivity of the Bragg mirror for a purpose of wavelength and angle of your incident beam.
This paper describes a femtosecond laser regenerative amplifier depending on two Yb:KYW crystals with direct longitudinal pumping by highly effective linear arrays of semiconductor injection lasers having fiber output. To stop spectral narrowing in the course of amplification as well as the corresponding lengthening of your amplified pulse when it is actually compressed, a combination of two Yb:KYW crystals have been utilised, While using the spectral maxima with the amplification shifted relative to one another and with spectral profiling of your amplified radiation.
Adhesion Check Compliant with MIL-C-675C military services criteria, an adhesion take a look at involved applying a tape that satisfies LT-90 specs onto the lens movie layer. The tape was affixed fully then eliminated vertically. This method was executed 3 times, leading to no blistering or peeling.
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five mm other than the middle from the beam caustic. In an effort to Verify the manner matching simulation, we carried out the experiment with Ng-cut crystal oscillator, which was created Earlier As well as in a similar ailment with simulation [11]. As demonstrated in Determine 3(b) with crimson dots and line, the CW output electric power is highly dependent on the posture of laser crystal plus the experimental consequence coincides perfectly with simulation consequence. Like a Take note, multimode Procedure transpired in experiment when the sizing with the pump beam is bigger than TEM00 cavity mode and it results in greater CW output power while in the displacement location under three.5 mm.
... at half-peak had been produced inside a grasp oscillator with selfsynchronization with the axial modes, described within our before short article. 21 The new version of your laser, as opposed to that explained inside our earlier report, used an Yb:KYW crystal having an N pcut (optical axis N p of your index ellipsoid was parallel on the propagation path of the laser radiation), Along with the polarization of the produced radiation directed alongside the N m axis.
... Don't just the posture of crystal within the cavity but additionally the amplification axis of crystal has an effect on the laser Procedure tremendously, as the absorption and emission cross sections from the crystal are pretty various based on the orientation of your crystal.
Though ytterbium-doped laser get media typically exhibit a small quantum defect, ytterbium-doped tungstates permit for specifically tiny values. By way of example, a 1030-nm Yb:YAG laser would Ordinarily be pumped about 940 nm, Whilst Yb:KGW or Yb:KYW could be most efficiently pumped about 981 nm.
Li2WO4-WO3 flux was more info correctly applied minimizing The expansion temperature underneath 900 oC. According to single crystal x-ray measurements, the crystal corresponds into the P2/n Area group.
Yb:KYW crystal (Yb-doped potassium yttrium tungstate) as compared to its counterpart Yb:KGW, is a extraordinary material that performs a significant role in laser technological know-how. Its Key function is always to make ultrashort pulses of sunshine, spanning just some hundred femtoseconds.
Question RP Photonics for any assistance regarding tungstate lasers, together with femtosecond lasers and higher-electrical power lasers.