The smart Trick of KYW Crystal That No One is Discussing
The smart Trick of KYW Crystal That No One is Discussing
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The comparison with glasses is acceptable since the large acquire bandwidth enables e.g. tungstate femtosecond lasers and tunable lasers to compete with glass lasers.
We existing a dual-crystal Yb:KGW laserthat iscapable to work to be a Q-switched oscillator with output electricity approximately 24 W and pulse size of 20 ns,or to be a regenerative amplifier with output electric power around 21 W and pulse length beneath 200 fs after compression of chirped pulses. Both lasers have outstanding beam excellent with beam parameter M2
FIG. 4. Autocorrelation perform of the heart beat 共a兲and spectrum 共b兲of the laser with an oblong active element for an output power of seven-hundred mW. The width of
This paper describes a femtosecond laser regenerative amplifier based upon two Yb:KYW crystals with direct longitudinal pumping by strong linear arrays of semiconductor injection lasers having fiber output. To forestall spectral narrowing for the duration of amplification plus the corresponding lengthening on the amplified pulse when it truly is compressed, a combination of two Yb:KYW crystals ended up applied, Using the spectral maxima on the amplification shifted relative to one another and with spectral profiling in the amplified radiation.
Adhesion Check Compliant with MIL-C-675C military services standards, an adhesion take a look at associated applying a tape that satisfies LT-90 technical specs onto the lens film layer. The tape was affixed totally after which you can removed vertically. This method was performed thrice, causing no blistering or peeling.
Raman, luminescence and transmission spectra expose optical options owing on the presence of thulium ions, and as a consequence the resources could possibly be additional studied from the scope of laser and luminescence programs.
Spatial construction with the beam and also the corresponding depth profiles I within the output from the laser.
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Nonetheless, when Nd3+:YAG became more info commercially out there, the fascination in CaWO4 dropped sharply. In later on years, sure other tungstate crystals started to attract many consideration.
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Yb:KYW crystal (Yb-doped potassium yttrium tungstate) in comparison with its counterpart Yb:KGW, can be a amazing material that performs a crucial position in laser engineering. Its primary perform is always to make ultrashort pulses of light, spanning just a couple hundred femtoseconds.
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