The best Side of CLBO Crystal

The best Side of CLBO Crystal

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All-solid-point out ultraviolet lasers are widely used in the fields of mechanical flaw detection, lithography, micromachining and medicine for some great benefits of compact quantity, long existence, significant efficiency, good beam quality, huge tuning and slim spectral line, etc. Making use of large energy close to-infrared coherent light resource as the basic frequency supply depending on nonlinear tuning technological innovation, producing ultraviolet coherent radiation by multistage frequency conversion is viewed as a vital approach to create the ultraviolet coherent light-weight resource.

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Based on the evidence-of-principle experiment, the conversion effectiveness of 23% implied the possibility of accomplishing superior-energy at the second Stokes wavelength in the Raman laser. In case the pump laser of 1078 nm can be acquired at the common electricity of 50 W, the output electrical power of its 2nd Stokes wavelength at 1512 nm could possibly be over 10 W. The design of your Raman laser cavity need to be optimized in order to avoid the damage of the M1 and diamond area.

The common electrical power of your NIR laser continue to has the potential to be improved to tens of watts like 70 W [26] if the double-go configuration may be utilized with the Yb:YAG SCF amplifier phase. Hence, In case the conversion efficiency of 31% from NIR to DUV may be even now managed at this increased power issue, the standard output electrical power with the DUV laser at 258 nm could be over 20 W, which would be considered a exceptional ability level for the DUV laser and bring about the unanticipated DUV laser machining benefits. What's more, for high-energy DUV laser, the UV hurt of the nonlinear crystal, including the windows for CLBO crystal as well as mirrors, is an additional significant parameter for lasting and stable operation.

Then again, the beam top quality of this bigger power DUV laser would turn out to be worse resulting from additional severe thermal and nonlinear results. For this reason, the frequency conversion processes really should be carefully created to mitigate the aforementioned results. Therefore, a significant-electricity DUV laser on the FHG of 1 μm with a very good beam excellent may be obtained and can be advantageous for obtaining the shorter wavelength DUV lasers which include 193 nm by SFG.

Due to the thermal lens outcome from the reliable-state lasers, Should the heating management is inadequate, It is far from simple to acquire the reliable-state laser with a superior energy and a significant beam top quality at the same time. Just lately, with the event of the thin disk laser and one-crystal fiber (SCF) laser, a higher-electric power laser at the fundamental wavelength (1 μm) had been recognized with a good beam quality Despite a TEM00 method beam [4,24], which would be very good candidates for the elemental of your DUV laser technology. An additional candidate for the fundamental is definitely the higher-electrical power fiber laser which may very well be achieved by coherent beam mix with M2 benefit fewer than one.

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The conversion performance from essential NIR to DUV is from five% to 36% based on the claimed brings about Table one. Expanding the conversion effectiveness will reduce the load on the design and set up of the fundamental laser amplifier along with the electric powered electrical power usage. A great beam high-quality of the basic laser will also lead to the rising of the conversion effectiveness and also the appropriate electrical power depth with the NIR and environmentally friendly laser while in the SHG and FHG method, respectively. The best conversion efficiencies from NIR to inexperienced and inexperienced to DUV laser by usage of CLBO crystal are 70% and all over fifty%, respectively [12], which corresponds for the conversion efficiency of 35% from basic to DUV.

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