Examine This Report on CLBO Crystal
Examine This Report on CLBO Crystal
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On the other hand, in an effort to method the crystal is incredibly advanced producing tactics are essential. Because the dawn of the crystal, focusing on this problem, we are actually the only organization in the world which might be processed On this crystal.
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We summarized the current advancement status of the superior-electric power DUV laser the two at the wavelength of FHG in the one-μm laser and at 193 nm. The latest enhancement on the reliable-state/fiber laser, together with the nonlinear optical crystals, prompts not just the normal energy and also the beam high-quality (coherence) on the DUV lasers to an unparalleled level.
The typical energy of the NIR laser continue to has the probable for being enhanced to tens of watts such as 70 W [26] if the double-go configuration may be utilized for the Yb:YAG SCF amplifier phase. For this reason, If your conversion efficiency of 31% from NIR to DUV can be however maintained at this larger power issue, the standard output energy of the DUV laser at 258 nm could be greater than 20 W, which might certainly be a remarkable energy degree for your DUV laser and produce the unanticipated DUV laser machining outcomes. Additionally, for top-energy DUV laser, the UV hurt with the nonlinear crystal, such as the Home windows for CLBO crystal plus the mirrors, is yet another essential parameter for long run and secure operation.
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Both equally the 1040 nm and 1078 nm laser come from 1 dual-wavelength Yb-doped fiber laser. Every single laser is amplified by phases of fiber amplifier and Yb-doped resources amplifier, respectively.
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In the scientific and industrial applications, the beam quality of the DUV laser is also an important parameter. Significantly, the beam high-quality on the DUV laser substantially affects the laser machining success. The beam excellent on the DUV laser is set by that of the elemental laser plus the crystal for your frequency conversion. Recently, a significant-electricity DUV laser (>10 W) at 258 nm was documented having a beam excellent of M2 < 1.5, which was created by FHG of a Yb:YAG laser at 1030 nm using the CLBO crystal [thirteen]. This laser would lead to a better laser machining consequence when compared with the previous DUV lasers with much larger M2.
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Also, combining the solid-condition laser with other nonlinear system including stimulated Raman scattering, NIR lasers may very more info well be accomplished at new wavelengths with large electric power and high beam top quality, which was tested via the evidence-of-principle experiment. This Raman laser plan offers a fresh route to the substantial-electric power DUV laser, Specially in the wavelength of 193 nm.
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The conversion effectiveness from essential NIR to DUV is from 5% to 36% in accordance with the described brings about Desk one. Increasing the conversion efficiency will decrease the stress on the design and set up of the elemental laser amplifier plus the electrical power consumption. A fantastic beam high-quality of the basic laser will even lead to your expanding of the conversion efficiency in addition to the suitable electrical power intensity in 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 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.
The development in the 193-nm laser was shown by phases of SFG. In order to scale the DUV laser electric power successfully, a completely new notion of your 193-nm DUV laser generation is offered dependant on the diamond Raman laser.