However, to be able to system the crystal is very Highly developed manufacturing tactics are necessary. For the reason that dawn of this crystal, engaged on this problem, we at the moment are the only corporation in the world that could be processed in this crystal.
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We summarized The present advancement position from the substantial-electricity DUV laser each within the wavelength of FHG on the one-μm laser and at 193 nm. The modern development on the solid-condition/fiber laser, as well as the nonlinear optical crystals, prompts not just the standard ability but in addition the beam quality (coherence) on the DUV lasers to an unparalleled level.
The normal electrical power of your NIR laser still has the possible to become enhanced to tens of watts for instance 70 W [26] If your double-move configuration might be used for that Yb:YAG SCF amplifier stage. As a result, In the event the conversion efficiency of 31% from NIR to DUV could be even now maintained at this increased power problem, the normal output energy on the DUV laser at 258 nm can be greater than 20 W, which might be considered a impressive power degree for the DUV laser and produce the unanticipated DUV laser machining success. Also, for top-power DUV laser, the UV problems on the nonlinear crystal, including the windows for CLBO crystal and the mirrors, is an additional crucial parameter for long-term and steady Procedure.
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The two the 1040 nm and 1078 nm laser come from a single dual-wavelength Yb-doped fiber laser. Just about every laser is amplified by phases of fiber amplifier and Yb-doped resources amplifier, respectively.
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Within the scientific and industrial purposes, the beam excellent of your DUV laser can be a crucial parameter. Significantly, the beam excellent from the DUV laser radically impacts the laser machining results. The beam good quality of the DUV laser is set by that of the basic laser and also the crystal for that frequency conversion. Not long ago, a high-electricity DUV laser (>ten W) at 258 nm was noted that has a beam quality of M2 < one.five, which was created by FHG of a Yb:YAG laser at 1030 nm using the CLBO crystal [13]. This laser would cause a far better laser machining result when compared with the former DUV lasers with much larger M2.
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The beam profile proven in Figure 7b shown a good beam good quality as on the list of merits of Raman laser, which might be useful to deliver a 193-nm DUV laser with a top quality beam.
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