Getting My KYW Crystal To Work
Getting My KYW Crystal To Work
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The comparison with Eyeglasses is acceptable Considering that the large gain bandwidth will allow e.g. tungstate femtosecond lasers and tunable lasers to contend with glass lasers.
Femtosecond laser based on Yb:KYW crystals with suppression of spectral narrowing in the regenerative amplifier by spectral profiling of the heart beat
FIG. 4. Autocorrelation operate of the pulse 共a兲and spectrum 共b兲of a laser with an oblong active factor for an output energy of seven hundred mW. The width of
This paper describes a femtosecond laser regenerative amplifier according to two Yb:KYW crystals with immediate longitudinal pumping by impressive linear arrays of semiconductor injection lasers acquiring fiber output. To forestall spectral narrowing for the duration of amplification along with the corresponding lengthening from the amplified pulse when it's compressed, a mix of two Yb:KYW crystals have been utilized, with the spectral maxima on the amplification shifted relative to each other and with spectral profiling of the amplified radiation.
Immediately after air drying and subsequent cleaning that has a cotton cloth soaked in Liquor, the movie surface showed no indications of peeling or scratches.
PDF Yb:KGW and Yb:KYW crystals have wide emission bandwidths and therefore are utilized as lasing materials to deliver ultrashort (~ one hundred-200 fs) superior electric power pulses. Direct pump of Yb:KGW/KYW crystals with laser diodes running at 981 nm supports compact laser techniques.
A large brightnessQ-switched oscillator and regenerative amplifier depending on a twin-crystal Yb:KGW laser
For tungstates, the ytterbium doping focus can be very significant with out major quenching because the replaced ions have an exceptionally comparable ion radius, along with the inter-ion length is pretty large.
By substituting yttrium with ytterbium inside the crystal lattice of Yb:KYW as a result click here of comparable dimensions of those chemical factors up to a hundred% of Yb-doping may be accomplished.
The thermal conductivity of typical double tungstates is of your purchase to three–4 W/(K m) �?which isn't poor compared with other laser crystals (While a number of situations under for YAG), and quite huge when compared While using the thermal conductivity of common glasses.
Li2WO4-WO3 flux was effectively utilized cutting down The expansion temperature below 900 oC. As outlined by one crystal x-ray measurements, the crystal corresponds to the P2/n Area group.
Yb:KYW crystal (Yb-doped potassium yttrium tungstate) when compared with its counterpart Yb:KGW, is really a exceptional materials that plays an important role in laser technology. Its Most important purpose should be to make ultrashort pulses of light, spanning just some hundred femtoseconds.
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