New Step by Step Map For KYW Crystal
New Step by Step Map For KYW Crystal
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This exclusive attribute of ultrafast pulses enables nonlinear optical conversation with tissue at lower General publicity, and drives applications including deep-tissue multiphoton microscopy and substantial-precision eye surgery
The Yb:KYW crystal’s proficiency in gentle absorption at all around 981 nm can make the crystal well suited for diode pumping. It is actually further Increased by its impressive effectiveness in this method, coupled with its very low quantum defect.
Shade-coded reflectivity of the Bragg mirror as being a operate of wavelength and angle of your incident beam.
Optical format of the laser with direct pumping Along with the radiation of semiconductor injection lasers. LD is surely an IPG Photonics laser diode with fiber output of the radiation, WP can be a 50 %-wave plate, CL is usually a collimating lens, FL is usually a concentrating lens, AE is definitely an Energetic factor comprised of an Yb:KYW crystal, DM is a spherical dichroic mirror, M1-M6 are classified as the cavity mirrors, OC is definitely the output mirror, and SAM is a semiconductor saturable-absorber mirror.
Soon after air drying and subsequent cleaning having a cotton fabric soaked in Alcoholic beverages, the movie floor confirmed no indications of peeling or scratches.
PDF Yb:KGW and Yb:KYW crystals have broad emission bandwidths and are used as lasing resources to generate ultrashort (~ one hundred-200 fs) large energy pulses. Immediate pump of Yb:KGW/KYW crystals with laser diodes working at 981 nm supports compact laser techniques.
five mm besides the middle of the beam caustic. In order to Examine the mode matching simulation, we performed the experiment with Ng-Minimize crystal oscillator, which was developed Earlier and in a very same affliction with simulation [eleven]. As revealed in Figure 3(b) with pink dots and line, the CW output energy is highly dependent on the situation of laser crystal and the experimental outcome coincides effectively with simulation consequence. Being a Observe, multimode Procedure transpired in experiment if the dimension from the here pump beam is bigger than TEM00 cavity mode and it leads to greater CW output energy in the displacement location down below 3.5 mm.
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Nonetheless, after Nd3+:YAG became commercially offered, the curiosity in CaWO4 dropped sharply. In later decades, sure other tungstate crystals began to draw in loads of attention.
Even though ytterbium-doped laser attain media generally exhibit a small quantum defect, ytterbium-doped tungstates permit for specifically tiny values. One example is, a 1030-nm Yb:YAG laser would Generally be pumped close to 940 nm, whereas Yb:KGW or Yb:KYW might be most successfully pumped about 981 nm.
Li2WO4-WO3 flux was properly utilized decreasing The expansion temperature down below 900 oC. In line with solitary crystal x-ray measurements, the crystal corresponds on the P2/n Place group.
The polarized absorption spectra of Tm3+-doped potassium yttrium tungstate (Tm:KY(WO4)two) crystal at home temperature were being calculated. The emission spectrum and life span on the 3 F four psyched condition were determined. Employing common and modified Judd–Ofelt theories, the depth parameters along with the radiative lifetimes ended up calculated and superior settlement While using the experimental final results was acquired for both of those theories.
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