Rumored Buzz on KYW Crystal
Rumored Buzz on KYW Crystal
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We current a dual-crystal Yb:KGW laserthat iscapable to operate as a Q-switched oscillator with output ability as many as 24 W and pulse duration of twenty ns,or like a regenerative amplifier with output power nearly 21 W and pulse length down below 200 fs after compression of chirped pulses. Both equally lasers have outstanding beam high-quality with beam parameter M2
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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 as well as the corresponding lengthening from the amplified pulse when it is actually compressed, a mix of two Yb:KYW crystals were made use of, Together with the spectral maxima from the amplification shifted relative to one another and with spectral profiling on the amplified radiation.
The monoclinic crystal constructions results in a pure birefringence, assisting to avoid thermally induced polarization rotation and depolarization reduction.
Raman, luminescence and transmission spectra expose optical functions owing on the presence of thulium ions, and for that reason the resources could possibly be more studied during the scope of laser and luminescence apps.
Spatial construction from the beam as well as the corresponding intensity profiles I at the output of the laser.
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By substituting yttrium with ytterbium while in the crystal lattice of Yb:KYW due to related sizes of such chemical aspects around a hundred% of Yb-doping may very well be attained.
The thermal conductivity of frequent double tungstates is of your buy to three–4 W/(K m) �?which isn't bad when more info compared with other laser crystals (Though several moments less than for YAG), and reasonably significant in contrast While using the thermal conductivity of common glasses.
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The polarized absorption spectra of Tm3+-doped potassium yttrium tungstate (Tm:KY(WO4)2) crystal at area temperature were being calculated. The emission spectrum and lifetime in the 3 F 4 energized point out have been determined. Using standard and modified Judd–Ofelt theories, the intensity parameters plus the radiative lifetimes had been calculated and fantastic settlement Along with the experimental benefits was received for the two theories.
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