5 Simple Statements About KGW Crystal Explained
5 Simple Statements About KGW Crystal Explained
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The achieve bandwidth e.g. of Yb:KGW and Yb:KYW may be very large in comparison with that of Yb:YAG. This permits for extensive wavelength tunability and for A great deal shorter pulse durations from method-locked lasers. Values very well underneath 100 fs happen to be reached with passive manner locking.
In its elemental kind, potassium contains a silvery gray metallic visual appearance, but its compounds (including potassium hydroxide) tend to be more regularly Employed in industrial and chemical programs.
The datasets applied and/or analysed during The existing research out there with the corresponding creator on acceptable request.
Amplified pulses with an Strength above 2.5 mJ is usually anticipated by making use of an increased pump ability to the regenerative amplifier and making it perform with the saturation stage. The laser fluence of ~one J/cm2 to the dichroic mirrors is considered to be below the harm threshold of higher-quality dielectric-coated mirrors.
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We strategy to boost the heartbeat Electrical power to above 40 mJ in two-stage multi-pass amplifiers, equivalent to a acquire element of 20. In Every single amplifier, we can even undertake two cascaded crystals positioned beneath orthogonal orientation to decrease the thermal load on Every single crystal and compensate to the gain-narrowing impact.
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Despite the fact that BGO, GGG, YSO, LSO and LYSO occasionally function laser hosts37, They are really mostly discovered as effective scintillators, whose scintillation Houses are studied very well38. However, the nonlinear optical Homes of such crystals and so their probable to function nonlinear resources for SC technology especially, and some other experiments relating to nonlinear propagation of powerful femtosecond laser pulses, keep on being quite poorly analyzed. Up to now, GGG, LT23,twenty five and YSO24 ended up only sketchily examined for SC technology with Ti:sapphire laser pumping, on the other hand, to the top of our expertise, Not one of the investigated elements were being examined with Yb-laser pumping, specifically for what considerations their general performance at very superior (tens to many kHz) pulse repetition rates.
The Yb:KGW laser technique incorporates a quasi-3-degree actions. The net get from the Yb:KGW crystal wasn't large: several tens of roundtrips had been necessary to amplify the nanojoule seed to the millijoule level. As a result, the achieve-narrowing impact was unavoidable in Yb:KGW regenerative amplifiers.
The scattered photons have more info another wavelength and Vitality as opposed to incident photons, which creates a Raman spectrum.
Both of those energies are marked from the dashed strains and their values are labeled during the plots. The similar functions were being also noticed in KGW and YAG crystals, whose spectral broadening dynamics are demonstrated for your comparison in Fig. 4.