Even so, in an effort to procedure the crystal may be very Highly developed producing procedures are essential. Since the dawn of the crystal, working on this problem, we at the moment are the sole enterprise on this planet which might be processed With this crystal.

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We summarized The existing progress standing of the superior-electricity DUV laser equally on the wavelength of FHG from the one-μm laser and at 193 nm. The latest enhancement in the good-state/fiber laser, and also the nonlinear optical crystals, prompts not just the standard electrical power and also the beam high quality (coherence) on the DUV lasers to an unparalleled amount.

The typical energy of the NIR laser continue to has the opportunity to get improved to tens of watts such as 70 W [26] If your double-move configuration could be utilized with the Yb:YAG SCF amplifier stage. Hence, In case the conversion efficiency of 31% from NIR to DUV may be even now preserved at this greater ability problem, the normal output energy from the DUV laser at 258 nm may be more than 20 W, which would become a amazing power level for your DUV laser and bring about the unanticipated DUV laser machining benefits. Also, for prime-electricity DUV laser, the UV problems on the nonlinear crystal, including the windows for CLBO crystal and also the mirrors, is another crucial parameter for long term and secure Procedure.

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Each the 1040 nm and 1078 nm laser originate from one particular dual-wavelength Yb-doped fiber laser. Every single laser is amplified by stages of fiber amplifier and Yb-doped resources amplifier, respectively.

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While in the scientific and industrial applications, the beam quality with the DUV laser can be a crucial parameter. Particularly, the beam excellent in the DUV laser radically impacts the laser machining outcomes. The beam excellent from the DUV laser is set by that of the fundamental laser along with the crystal for the frequency conversion. Just lately, a superior-electrical power DUV laser (>ten W) at 258 nm was described with a beam high-quality of M2 < one.five, which was produced by FHG of the Yb:YAG laser at 1030 nm utilizing the CLBO crystal [thirteen]. This laser would produce a better laser machining end result when compared with the earlier DUV lasers with larger sized M2.

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Cesium Lithium Borate (CsLiB6O10 or CLBO) is the best non-linear crystal which generates ultraviolet harmonics on the Nd:YAG basic laser wavelength. In an effort to increase the hurt threshold, minimal CLBO surface roughness, by extremely-precision machining, is required. Because the CLBO crystal has easy hydroscopic response and micro scratches in machining, ultra-specific machining of the CLBO crystal is actually a challenging technical dilemma.

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The conversion performance from fundamental NIR to DUV is from five% to 36% in accordance with the noted ends in Table 1. Escalating the conversion performance will lessen the load on the design and set up of the click here elemental laser amplifier along with the electric powered electrical power usage. A superb beam top quality of the fundamental laser will also contribute to the expanding of the conversion efficiency and the appropriate electricity intensity of your NIR and inexperienced laser in the SHG and FHG system, respectively. The very best conversion efficiencies from NIR to green and environmentally friendly to DUV laser by usage of CLBO crystal are 70% and all-around 50%, respectively [twelve], which corresponds for the conversion performance of 35% from elementary to DUV.

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