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The comparison with glasses is acceptable Because the big attain bandwidth enables e.g. tungstate femtosecond lasers and tunable lasers to contend with glass lasers.

We existing a twin-crystal Yb:KGW laserthat iscapable to work being a Q-switched oscillator with output power as many as 24 W and pulse size of twenty ns,or being a regenerative amplifier with output energy approximately 21 W and pulse period underneath 200 fs immediately after compression of chirped pulses. Both lasers have fantastic beam quality with beam parameter M2

FIG. four. Autocorrelation purpose of the pulse 共a兲and spectrum 共b兲of a laser with a rectangular Lively ingredient for an output ability of seven hundred mW. The width of

By substituting yttrium with ytterbium while in the crystal lattice of Yb:KYW as a result of very similar sizes of these chemical aspects nearly a hundred% of Yb-doping may be attained. This unique attribute permits ytterbium to take the put of yttrium with just about no disruption on the crystal’s lattice.

Right after air drying and subsequent cleansing using a cotton fabric soaked in Liquor, the film area confirmed no signs of peeling or scratches.

FIG. 1. Optical structure of a laser with immediate pumping While using the radiation of semiconductor injection lasers. LD is an IPG Photonics laser diode with fiber output

Spatial construction in the beam and also the corresponding depth profiles I in the output on the laser.

For tungstates, the ytterbium doping concentration can be extremely higher without significant quenching as the replaced ions have a really similar ion radius, plus the inter-ion distance is fairly big.

Substantial-electric power repetitively pulsed ytterbium lasers with supershort pulse width and direct diode pumping for technological and biomedical programs

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The polarized absorption spectra of Tm3+-doped potassium yttrium tungstate (Tm:KY(WO4)two) crystal at area temperature ended up measured. The emission spectrum and life span on the three File four fired up point out were being determined. Making use of conventional and modified Judd–Ofelt theories, the intensity parameters as well as the radiative lifetimes have been calculated and fantastic settlement with the click here experimental outcomes was acquired for the two theories.

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