Not known Details About KYW Crystal
Not known Details About KYW Crystal
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The comparison with Eyeglasses is acceptable For the reason that massive obtain bandwidth permits e.g. tungstate femtosecond lasers and tunable lasers to contend with glass lasers.
We current a twin-crystal Yb:KGW laserthat iscapable to work like a Q-switched oscillator with output electrical power approximately 24 W and pulse length of 20 ns,or to be a regenerative amplifier with output electric power up to 21 W and pulse length under two hundred fs following compression of chirped pulses. Equally lasers have excellent beam quality with beam parameter M2
The absorption and emission spectra of Yb:KYW Crystals Exhibit potent peaks at 980 nm and 1030 nm, respectively, guaranteeing productive Strength conversion and significant efficiency in laser techniques.
By substituting yttrium with ytterbium within the crystal lattice of Yb:KYW as a result of identical sizes of such chemical components approximately a hundred% of Yb-doping may very well be achieved. This special characteristic permits ytterbium to take the area of yttrium with pretty much no disruption to the crystal’s lattice.
Just after air drying and subsequent cleansing having a cotton fabric soaked in alcohol, the movie surface confirmed no indications of peeling or scratches.
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A superior brightnessQ-switched oscillator and regenerative amplifier based on a twin-crystal Yb:KGW laser
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... Not only the posture of crystal while in the cavity but additionally the amplification axis of crystal has an effect on the laser operation enormously, because the absorption and emission cross sections with the crystal are pretty distinct based on the orientation on the crystal.
The thermal conductivity of popular double tungstates is of the buy to 3–four W/(K click here m) �?which isn't terrible in contrast with other laser crystals (although various instances fewer than for YAG), and pretty massive when compared Using the thermal conductivity of normal Eyeglasses.
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Yb:KYW crystal (Yb-doped potassium yttrium tungstate) compared to its counterpart Yb:KGW, is really a remarkable product that performs a vital position in laser know-how. Its Principal perform is to crank out ultrashort pulses of light, spanning just some hundred femtoseconds.
Concurrently, a shorter laser wavelength is often acquired; it can be done to function with a quantum defect effectively under one%. As being a consequence, the warmth technology is often so little that this partly compensates the lower thermal conductivity.