Examine This Report on CLBO Crystal
Examine This Report on CLBO Crystal
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We summarized The existing improvement position of the large-ability DUV laser each on the wavelength of FHG with the one-μm laser and at 193 nm. The recent advancement of your reliable-state/fiber laser, plus the nonlinear optical crystals, prompts don't just the common electricity but additionally the beam high-quality (coherence) in the DUV lasers to an unparalleled level.
The true secret trouble of ultraviolet coherent gentle supply mostly focuses on the development of nonlinear optical frequency conversion crystal in ultraviolet band. The nonlinear optical crystal has become the disorders for frequency transformation, so The expansion, dimensions, problems resistance, conversion efficiency and allowable parameter range of nonlinear optical crystal are needed A lot more.
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During the scientific and industrial apps, the beam good quality on the DUV laser can also be an essential parameter. Significantly, the beam good quality of the DUV laser considerably affects the laser machining effects. The beam high quality of the DUV laser is determined by that of the basic laser as well as crystal for your frequency conversion. Not long ago, a high-electrical power DUV laser (>ten W) at 258 nm was reported by using a beam high quality of M2 < 1.5, which was generated by FHG of a Yb:YAG laser at 1030 nm using the CLBO crystal [13]. This laser would lead to a much better laser machining result when compared to the previous DUV lasers with greater M2.
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The conversion efficiency from essential NIR to DUV is from 5% to 36% based on the documented results in Table 1. Expanding the conversion effectiveness will lessen the burden on the look and set up of the fundamental laser amplifier as well as the electrical ability usage. A good beam high-quality of the basic laser will likely add to your increasing from the conversion efficiency along with the appropriate electrical power intensity from the NIR and eco-friendly laser within the SHG and FHG procedure, respectively. The highest conversion efficiencies from NIR to environmentally friendly and environmentally friendly to DUV laser click here by utilization of CLBO crystal are 70% and close to 50%, respectively [twelve], which corresponds on the conversion efficiency of 35% from essential to DUV.
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