Examine This Report on CLBO Crystal
Examine This Report on CLBO Crystal
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All-good-condition ultraviolet lasers have already been greatly used in the fields of mechanical flaw detection, lithography, micromachining and medication for some great benefits of tiny quantity, extensive lifestyle, substantial efficiency, good beam top quality, extensive tuning and slim spectral line, and so forth. Using superior electric power close to-infrared coherent light-weight supply as the fundamental frequency supply dependant on nonlinear tuning technological innovation, making ultraviolet coherent radiation by multistage frequency conversion is thought to be a crucial method to establish the ultraviolet coherent mild resource.
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We summarized the current improvement position in the large-electricity DUV laser both equally for the wavelength of FHG in the one-μm laser and at 193 nm. The the latest enhancement from the stable-state/fiber laser, as well as the nonlinear optical crystals, prompts not only the common electrical power but in addition the beam quality (coherence) in the DUV lasers to an unparalleled amount.
The real key trouble of ultraviolet coherent mild resource predominantly concentrates on the event of nonlinear optical frequency conversion crystal in ultraviolet band. The nonlinear optical crystal is one of the disorders for frequency transformation, so the growth, dimension, damage resistance, conversion efficiency and allowable parameter variety of nonlinear optical crystal are essential A growing number of.
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The two the 1040 nm and 1078 nm laser originate from just one dual-wavelength Yb-doped fiber laser. Every laser is amplified by stages of fiber amplifier and Yb-doped materials amplifier, respectively.
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Cesium Lithium Borate (CsLiB6O10 or CLBO) is the most effective non-linear crystal which generates ultraviolet harmonics of your Nd:YAG elementary laser wavelength. To be able to increase the damage threshold, lower CLBO floor roughness, by extremely-precision machining, is necessary. Because the CLBO crystal has simple hydroscopic response and micro scratches in machining, extremely-exact machining of your CLBO crystal can be a complicated technical problem.
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The conversion performance from elementary NIR to DUV is from five% to 36% in accordance with the reported leads to Desk one. Expanding the conversion performance will check here lessen the burden on the look and set up of the elemental laser amplifier as well as the electric powered energy usage. An excellent beam good quality of the basic laser may even contribute for the escalating in the conversion efficiency as well as the right electrical power intensity of the NIR and environmentally friendly laser from the SHG and FHG approach, respectively. The highest conversion efficiencies from NIR to environmentally friendly and eco-friendly to DUV laser by use of CLBO crystal are 70% and all over 50%, respectively [twelve], which corresponds towards the conversion performance of 35% from basic to DUV.
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