5 Simple Statements About KGW Crystal Explained
5 Simple Statements About KGW Crystal Explained
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Down the road, an investigation within the spectral acquire curve of Yb:KGW in the leading amplifier will probably be carried out underneath cryogenic temperature evolution from seventy seven K to three hundred K. The Doing the job temperature are going to be managed to appreciate broader gain bandwidth and less shift with the central wavelength of the principle amplifier.
Along with its use as a Raman crystal, KGW is also used in other optical programs, which include in laser devices and as a scintillator in professional medical imaging.
Substitute from the Computer for a better a single or possibly a great adjustment of the PC orientation along with the utilized significant voltage is required to stay away from this phenomenon. A fast pulse picker can be utilized to improve the nanosecond-scale distinction of your output most important pulse.
For tungstates, the ytterbium doping concentration can be quite significant without the need of significant quenching as the changed ions have a very similar ion radius, and the inter-ion distance is relatively substantial.
Another was put with its Np -axis parallel Using the s-polarized route. A comparison was built among a configuration Using the crystals put in the exact same orientation (
The black line denotes the configuration While using the crystals positioned in exactly the same orientation, while the purple line is underneath the configuration of crystals placed in orthogonal orientation.
The actual spectra have been reconstructed by correcting the measured spectra using an account to the filter transmission features and to the sensitivity features of your spectrometers at the data write-up-processing phase. The spectral dynamics in Just about every sample was measured by wonderful tuning the pump pulse Electricity with a pc-managed attenuator that was integrated inside the laser program. Thermal energy meter EM (Ophir 3A-PF-twelve) was used to measure the SC Electricity which was thereafter used to work out the spectral Power density with the SC radiation. All the measurements have been done without any translation on the sample with respect on the pump beam.
The 2-pump laser could give around one hundred twenty W power. Roughly 60% of the maximum pump electricity was utilized within our experiment looking at the small overall performance from the dichroic mirrors. Below this dual-crystal configuration, our cavity supports a 100 W pump energy enter, as talked over in Area two.two. Higher-good quality dichroic mirrors might be utilised in the future, and laser pulses is going to be stretched to a longer pulse length.
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A multi-go main amplifier will even further Enhance the Power click here to previously mentioned forty mJ. We are going to use cryogenically cooled Yb:KGW know-how to restrain the thermal impact. Two stages of compression will likely be made use of immediately after amplification. The very first phase entails a typical Treacy-variety compressor, and could compress the heart beat duration to beneath three hundred fs with the efficiency of around 70%. The second stage consists of a gasoline-crammed multi-move cell[
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