The 2-Minute Rule for CLBO Crystal
The 2-Minute Rule for CLBO Crystal
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On this paper, The brand new lapping slurry and sharpening slurry are launched. As well as deliquescence degree of CLBO is fallen to lowest. A different working technologies can also be adopted. After tough sharpening, the concentration of ultra-precision polishing slurry is increased correctly. So does the ultra-precision sprucing speed, along with the wiping velocity is quicker when compared to the deliquescence pace. The CLBO crystal floor roughness can reach 1nm and preserve the surface area high quality effectively. Obtain by means of your institution
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We summarized The existing advancement status of the high-energy DUV laser the two within the wavelength of FHG on the 1-μm laser and at 193 nm. The modern growth with the good-state/fiber laser, as well as the nonlinear optical crystals, prompts not simply the typical energy but also the beam good quality (coherence) with the DUV lasers to an unparalleled level.
The common electrical power with the NIR laser nonetheless has the prospective to generally be enhanced to tens of watts including 70 W [26] In the event the double-move configuration might be used for that Yb:YAG SCF amplifier phase. That's why, In the event the conversion efficiency of 31% from NIR to DUV can be even now maintained at this increased energy ailment, the normal output energy with the DUV laser at 258 nm might be greater than twenty W, which would be described as a remarkable electric power degree for your DUV laser and bring about the unanticipated DUV laser machining success. Additionally, for top-power DUV laser, the UV harm of the nonlinear crystal, including the windows for CLBO crystal as well as the mirrors, is yet another significant parameter for long-lasting and steady Procedure.
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Both of those the 1040 nm and 1078 nm laser originate from 1 dual-wavelength Yb-doped fiber laser. Each individual laser is amplified by stages of fiber amplifier and Yb-doped elements amplifier, respectively.
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The pulse period of the second Stokes light-weight was shortened to five ns as demonstrated in Figure 7a, an individual-shot photo through the oscilloscope, which can be a standard phenomenon in click here Raman laser [forty four] when the heartbeat duration with the pump laser was 10 ns.
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The beam profile proven in Determine 7b demonstrated an excellent beam high-quality as one of many merits of Raman laser, which would be helpful to create a 193-nm DUV laser with a high quality beam.
The conversion efficiency from basic NIR to DUV is from five% to 36% based on the documented brings about Desk 1. Rising the conversion efficiency will decrease the stress on the design and setup of the basic laser amplifier as well as the electrical electrical power consumption. A superb beam quality of the fundamental laser may even add on the increasing from the conversion efficiency in addition to the appropriate energy depth of your NIR and green laser within the SHG and FHG process, respectively. The highest conversion efficiencies from NIR to green and eco-friendly to DUV laser by utilization of CLBO crystal are 70% and around 50%, respectively [12], which corresponds into the conversion performance of 35% from essential to DUV.
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