Not known Details About KGW Crystal
Not known Details About KGW Crystal
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The red-shifted part of the SC is of useful great importance, specifically for what concerns the efficiency of broadly tunable optical parametric amplifiers pumped by the fundamental harmonics of Yb lasers. The shortage of seed photons during the extended-wavelength region from the SC spectrum limits the amplification performance and leads to pulse-to-pulse Vitality fluctuations across the degeneracy region on the optical parametric amplifier. This aspect is quantified in Fig. 6a by plotting the SC spectra regarding spectral Electrical power density, which was estimated by measuring the Strength in the axial Element of SC radiation (that's the one almost helpful A part of SC emission). KGW crystal makes the very best spectral Electricity density while in the 1200�?450 nm vary, as noted inside a current study30.
The datasets employed and/or analysed during The existing study obtainable within the corresponding author on reasonable ask for.
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The black line denotes the configuration While using the crystals placed in exactly the same orientation, while the purple line is under the configuration of crystals put in orthogonal orientation.
Talk to RP Photonics for almost any information relating to tungstate lasers, including femtosecond lasers and substantial-electrical power lasers.
The purple-shifted Portion of the SC spectrum in BGO has the lowest spectral Vitality density, that is one–two website orders of magnitude decrease than in the remainder of the materials. Nevertheless, really low Electricity threshold of SC generation, together with minimal ideal pump Electrical power in BGO, need to be pointed out. The estimated spectral energy densities manufactured in LSO and LYSO are quite similar to YAG through the key Component of the SC spectrum. Essentially the most exciting locating in that regard is GGG crystal, which, Irrespective of really average blue-shifted spectral broadening, generates the largest spectral red-change and the very best spectral Electrical power density within the 1600�?000 nm array, which is sort of an order of magnitude bigger than that developed in YAG.
The Martinez stretcher stretched the seed pulses to ~250 ps with 1600 grooves/mm grating. The enter with the stretcher (incident angle: 52°) and that in the compressor incident on the grating have been from your identical facet; as a result, a slight angular tuning of your grating may be produced to get the very best compression consequence. Within the compressor, the input angle over the grating and the distance among the interpretation phase (S1) and also the transmission grating (TG) ended up meant to compensate for that stretcher dispersion and all dispersion introduced via the supplies.
Tungstates are inclined to possess high Raman coefficients (�?Raman scattering). Consequently, they're able to deliver important Raman acquire at moderate optical intensities. It can be done to utilize the laser crystal alone as being a Raman converter.
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]. The dual-crystal configuration lowers the thermal load on Each individual crystal while preserving a significant acquire, and facilitates the compensation of each’s thermal lensing influence. As a result, the laser cavity can perform with a considerable stability assortment above the thermal lensing influence variation.