Getting My KYW Crystal To Work
Getting My KYW Crystal To Work
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The Yb-doped potassium yttrium tungstate (Yb:KYW) crystal, in comparison to its counterpart Yb:KGW, is really a amazing material that plays a vital job in laser technologies. Its Major purpose will be to deliver ultrashort pulses of sunshine, spanning just a couple hundred femtoseconds.
The Yb:KYW crystal’s proficiency in light absorption at all around 981 nm tends to make the crystal compatible for diode pumping. It is actually more Improved by its amazing performance in this method, coupled with its small quantum defect.
Coloration-coded reflectivity of the Bragg mirror being a operate of wavelength and angle in the incident beam.
This paper describes a femtosecond laser regenerative amplifier based on two Yb:KYW crystals with immediate longitudinal pumping by powerful linear arrays of semiconductor injection lasers possessing fiber output. To avoid spectral narrowing for the duration of amplification along with the corresponding lengthening on the amplified pulse when it really is compressed, a combination of two Yb:KYW crystals were being applied, Along with the spectral maxima of your amplification shifted relative to one another and with spectral profiling from the amplified radiation.
After air drying and subsequent cleansing having a cotton fabric soaked in alcohol, the movie area showed no signs of peeling or scratches.
PDF Yb:KGW and Yb:KYW crystals have broad emission bandwidths and they are made use of as lasing products to crank out ultrashort (~ one hundred-200 fs) high power pulses. Direct pump of Yb:KGW/KYW crystals with laser diodes running at 981 nm supports compact laser methods.
five mm apart from the middle of the beam caustic. In order to check the manner matching simulation, we done the experiment with Ng-Minimize crystal oscillator, which was produced Formerly As well as in a similar issue with simulation [11]. As proven in Determine three(b) with red dots and line, the CW output ability is extremely dependent on the posture of laser crystal plus the experimental end result coincides well with simulation consequence. As being a Take note, multimode operation transpired in experiment when the measurement of the pump beam is more substantial than TEM00 cavity manner and it triggers greater CW output ability within the displacement area underneath three.five mm.
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By substituting yttrium with ytterbium in the crystal lattice of Yb:KYW due to the comparable sizes of such chemical aspects around 100% of Yb-doping could be obtained.
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