During this paper, the new lapping slurry and sprucing slurry are introduced. And the deliquescence degree of CLBO is fallen to cheapest. A completely new Functioning know-how is usually adopted. Following rough polishing, the concentration of extremely-precision sharpening slurry is increased correctly. So does the extremely-precision sharpening pace, as well as wiping velocity is quicker compared to the deliquescence speed. The CLBO crystal surface area roughness can realize 1nm and retain the surface area top quality nicely. Obtain by your institution
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In accordance with the proof-of-theory experiment, the conversion performance of 23% implied the possibility of accomplishing higher-electric power at the 2nd Stokes wavelength from the Raman laser. Should the pump laser of 1078 nm may be received at the normal electricity of 50 W, the output electricity of its 2nd Stokes wavelength at 1512 nm may be over 10 W. The look with the Raman laser cavity ought to be optimized as a way to avoid the harm in the M1 and diamond surface.
As an example, the current concave OC could get replaced by a plane mirror which could mitigate the facility density about the surface area of M1 and also the diamond. Moreover, working with large harm threshold coatings for M1 and diamond would also Enhance the output electrical power with none damages. Then, the NIR laser within the 2nd Stokes wavelength may be large enough, as well as its good beam excellent, to crank out the ultimate DUV laser at 193 nm by using a large normal ability.
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Each the 1040 nm and 1078 nm laser come from a single dual-wavelength Yb-doped fiber laser. Each laser is amplified by phases of fiber amplifier and Yb-doped elements amplifier, respectively.
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From the scientific and industrial apps, the beam excellent on the DUV laser can be a vital parameter. Specifically, the beam top quality of the DUV laser radically influences the laser machining effects. The beam good quality from the DUV laser is set by that of the fundamental laser along with the crystal with the frequency conversion. Just lately, a large-power DUV laser (>ten W) at 258 nm was reported that has a beam high quality of M2 < one.five, which was generated by FHG of a Yb:YAG laser at 1030 nm utilizing the CLBO crystal [thirteen]. This laser would produce a much better laser machining final result when compared with the former DUV lasers with larger M2.
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The beam profile proven in Determine 7b shown a great beam good quality as on the list of deserves of Raman laser, which read more would be useful to crank out a 193-nm DUV laser with a top quality beam.
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The event in the 193-nm laser was shown by stages of SFG. In an effort to scale the DUV laser power properly, a completely new notion with the 193-nm DUV laser era is introduced based on the diamond Raman laser.