KYW Crystal No Further a Mystery
KYW Crystal No Further a Mystery
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We existing a twin-crystal Yb:KGW laserthat iscapable to work being a Q-switched oscillator with output electrical power approximately 24 W and pulse duration of twenty ns,or being a regenerative amplifier with output electric power approximately 21 W and pulse duration underneath 200 fs right after compression of chirped pulses. Each lasers have superb beam high quality with beam parameter M2
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Ultrafast lasers, with pulse widths of a few picoseconds (10−12 s) or fewer, permit enough time resolution demanded in laser-thrilled fluorescence lifetime spectroscopy and imaging techniques.Moreover, they produce superior pulse peak powers at significant repetition premiums and reasonable average output powers.
Just before the event of Nd:YAG, Nd3+:CaWO4 was a vital rare-earth-doped laser get medium. It had been in actual fact Utilized in the main constantly running crystal laser.
PDF Yb:KGW and Yb:KYW crystals have broad emission bandwidths and are made use of as lasing elements to make ultrashort (~ 100-two hundred fs) substantial electrical power pulses. Direct pump of Yb:KGW/KYW crystals with laser diodes operating at 981 nm supports compact laser systems.
five mm other than the center from the beam caustic. To be able to Verify the manner matching simulation, we done the experiment with Ng-cut crystal oscillator, which was formulated Earlier As well as in a similar issue with simulation [11]. As revealed in Figure three(b) with purple dots and line, the CW output ability is very depending on the posture of laser crystal as well as experimental end result coincides well with simulation end result. As a Notice, multimode Procedure occurred in experiment once the sizing of the pump beam is more substantial than TEM00 cavity manner and it leads to increased CW output ability inside the displacement location down below 3.5 mm.
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By substituting yttrium with ytterbium during the crystal lattice of Yb:KYW as a result of similar sizes of these chemical factors around one hundred% of Yb-doping could be attained.
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The polarized absorption spectra of Tm3+-doped potassium yttrium tungstate (Tm:KY(WO4)two) crystal at home temperature had been measured. The emission spectrum and lifetime with the three File four excited state had been established. Employing typical and modified Judd–Ofelt theories, the depth parameters as well as radiative lifetimes were calculated and good agreement with the experimental outcomes was obtained for both theories.
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