The obtain bandwidth e.g. of Yb:KGW and Yb:KYW is rather significant compared with that of Yb:YAG. This permits for vast wavelength tunability and for much shorter pulse durations from mode-locked lasers. Values effectively beneath one hundred fs have been accomplished with passive method locking.

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We present a dual-crystal Yb:KGW laserthat iscapable to work as being a Q-switched oscillator with output ability up to 24 W and pulse size of 20 ns,or as being a regenerative amplifier with output power as many as 21 W and pulse period under two hundred fs after compression of chirped pulses. The two lasers have great beam good quality with beam parameter M2

Color-coded reflectivity of a Bragg mirror as being a functionality of wavelength and angle of the incident beam.

This paper describes a femtosecond laser regenerative amplifier according to two Yb:KYW crystals with immediate longitudinal pumping by effective linear arrays of semiconductor injection lasers owning fiber output. To avoid spectral narrowing during amplification along with the corresponding lengthening of your amplified pulse when it's compressed, a mix of two Yb:KYW crystals have been applied, Using the spectral maxima of the amplification shifted relative to each other and with spectral profiling on the amplified radiation.

The monoclinic crystal constructions leads to a all-natural birefringence, helping to keep away from thermally induced polarization rotation and depolarization loss.

Raman, luminescence and transmission spectra expose optical functions owing to your existence of thulium ions, and therefore the elements may very well be even more studied while in the scope of laser and luminescence apps.

A higher brightnessQ-switched oscillator and regenerative amplifier according to a dual-crystal Yb:KGW laser

... at 50 %-peak had been generated in the grasp oscillator with selfsynchronization on the axial modes, described within our earlier report. 21 The new version in the laser, not like that explained within our earlier posting, made use of an Yb:KYW crystal having an N pcut (optical axis N p with the index ellipsoid was parallel to your propagation course from the laser radiation), with the polarization with the produced radiation directed together the N m axis.

... Don't just the placement of crystal from the cavity but also the amplification axis of crystal more info impacts the laser Procedure greatly, since the absorption and emission cross sections of your crystal are rather different in accordance with the orientation of your crystal.

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This tandem of characteristics has much-reaching implications, notably in the development of compact still powerfull lasers.

Yb:KYW crystal (Yb-doped potassium yttrium tungstate) when compared to its counterpart Yb:KGW, is usually a exceptional substance that performs a very important part in laser know-how. Its Main perform is to deliver ultrashort pulses of sunshine, spanning just some hundred femtoseconds.

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