New Step by Step Map For KYW Crystal
New Step by Step Map For KYW Crystal
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The comparison with glasses is suitable Because the massive attain bandwidth permits e.g. tungstate femtosecond lasers and tunable lasers to contend with glass lasers.
We existing a twin-crystal Yb:KGW laserthat iscapable to work as being a Q-switched oscillator with output power around 24 W and pulse duration of twenty ns,or being a regenerative amplifier with output ability up to 21 W and pulse period below 200 fs after compression of chirped pulses. Both of those lasers have superb beam top quality with beam parameter M2
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This paper describes a femtosecond laser regenerative amplifier determined by two Yb:KYW crystals with direct longitudinal pumping by powerful linear arrays of semiconductor injection lasers acquiring fiber output. To circumvent spectral narrowing throughout amplification and the corresponding lengthening of your amplified pulse when it truly is compressed, a combination of two Yb:KYW crystals have been used, Along with the spectral maxima with the amplification shifted relative to each other and with spectral profiling in the amplified radiation.
In advance of the event of Nd:YAG, Nd3+:CaWO4 was an important uncommon-earth-doped laser gain medium. It had been in truth Utilized in the initial constantly functioning crystal laser.
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Spatial composition of your beam as well as corresponding intensity profiles I at the output of the laser.
... at half-peak ended up produced within a grasp oscillator with selfsynchronization of the axial modes, explained inside our earlier article. 21 The new version of your laser, unlike that explained within our earlier report, utilized an Yb:KYW crystal having an N pcut (optical axis N p from the index ellipsoid was parallel to your propagation course of your laser radiation), With all the polarization with the produced radiation directed together the N m axis.
Significant-energy repetitively pulsed ytterbium lasers with supershort pulse width and immediate diode pumping for technological and biomedical apps
Whilst ytterbium-doped laser attain media typically show a small quantum defect, ytterbium-doped tungstates make it possible for get more info for specifically compact values. As an example, a 1030-nm Yb:YAG laser would normally be pumped all around 940 nm, Whilst Yb:KGW or Yb:KYW could possibly be most competently pumped about 981 nm.
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