KYW Crystal - An Overview
KYW Crystal - An Overview
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We present a dual-crystal Yb:KGW laserthat iscapable to operate as being a Q-switched oscillator with output electrical power approximately 24 W and pulse duration of 20 ns,or as a regenerative amplifier with output energy up to 21 W and pulse duration beneath two hundred fs soon after compression of chirped pulses. Equally lasers have exceptional beam top quality with beam parameter M2
Coloration-coded reflectivity of a Bragg mirror to be a functionality of wavelength and angle on the incident beam.
Ultrafast lasers, with pulse widths of a few picoseconds (10−12 s) or significantly less, empower enough time resolution essential in laser-fired up fluorescence lifetime spectroscopy and imaging procedures.In addition, they deliver higher pulse peak powers at superior repetition fees and reasonable common output powers.
Ahead of the event of Nd:YAG, Nd3+:CaWO4 was a very important unusual-earth-doped laser gain medium. It had been in truth used in the initial repeatedly functioning 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. Immediate pump of Yb:KGW/KYW crystals with laser diodes running at 981 nm supports compact laser techniques.
5 mm aside from the center of the beam caustic. In order to Look at the method matching simulation, we executed the experiment with Ng-Minimize crystal oscillator, which was produced previously As well as in a identical condition with simulation [eleven]. As shown in Determine 3(b) with purple dots and line, the CW output electrical power is very dependent on the posture of laser crystal along with the experimental outcome coincides well with simulation consequence. As a Notice, multimode Procedure happened in experiment once the dimensions from the pump beam is much larger than TEM00 cavity manner and it leads to increased CW output power within the displacement area underneath three.five mm.
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By substituting yttrium with ytterbium while in the crystal lattice of Yb:KYW a result of the equivalent sizes of such chemical factors as much as a hundred% of Yb-doping may be accomplished.
The thermal conductivity of typical double tungstates is with the purchase to three–4 W/(K m) �?which isn't negative compared with other laser crystals (While a number of periods lower than for YAG), and rather big when compared with the thermal conductivity of standard Eyeglasses.
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Yb:KYW crystal (Yb-doped potassium yttrium tungstate) as compared to its counterpart Yb:KGW, is usually a extraordinary substance that performs an essential part in laser engineering. Its Key operate is always to make ultrashort pulses of sunshine, spanning just a couple hundred femtoseconds.
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