Indicators on CLBO Crystal You Should Know
Indicators on CLBO Crystal You Should Know
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All-solid-state ultraviolet lasers happen to be broadly Utilized in the fields of mechanical flaw detection, lithography, micromachining and drugs for the benefits of modest volume, extensive lifestyle, substantial performance, excellent beam quality, huge tuning and slim spectral line, etc. Using substantial energy around-infrared coherent light supply as the basic frequency supply determined by nonlinear tuning technologies, building ultraviolet coherent radiation by multistage frequency conversion is thought to be an important technique to establish the ultraviolet coherent mild resource.
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The typical electric power of your NIR laser however has the opportunity to get improved to tens of watts like 70 W [26] In case the double-go configuration may very well be utilized for that Yb:YAG SCF amplifier stage. Therefore, When the conversion performance of 31% from NIR to DUV could be nevertheless maintained at this increased energy problem, the typical output electricity with the DUV laser at 258 nm may very well be a lot more than twenty W, which would become a exceptional electricity degree for the DUV laser and bring about the unanticipated DUV laser machining success. Also, for high-power DUV laser, the UV destruction on the nonlinear crystal, including the windows for CLBO crystal and the mirrors, is another critical parameter for long run and secure Procedure.
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The heart beat length of the 2nd Stokes light-weight was shortened to 5 ns as shown in Determine 7a, an individual-shot picture from the oscilloscope, which can be a common phenomenon in Raman laser [forty four] while the heart beat length from the pump laser was ten ns.
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The conversion efficiency from basic NIR to DUV is from five% to 36% according to the noted brings about Table 1. Expanding the conversion performance will decrease the burden on the look and set up of the basic laser amplifier in addition to the electric power use. A fantastic beam good quality of the fundamental laser will even add on the increasing of the conversion effectiveness along with the right electrical power depth from the NIR and inexperienced laser in the SHG and FHG method, respectively. The best conversion efficiencies from NIR to environmentally friendly and green to DUV laser by use of CLBO crystal are 70% and all around fifty%, respectively [twelve], which corresponds into the conversion performance of 35% from elementary to DUV.
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