Getting My CLBO Crystal To Work
Getting My CLBO Crystal To Work
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Having said that, in an effort to process the crystal is rather Sophisticated production approaches are required. Because the dawn of the crystal, engaged on this challenge, we are now the one enterprise on the earth that may be processed in this crystal.
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The typical energy of the NIR laser continue to has the probable to get enhanced to tens of watts for instance 70 W [26] In case the double-pass configuration might be used for that Yb:YAG SCF amplifier stage. Hence, Should the conversion effectiveness of 31% from NIR to DUV could possibly be even now maintained at this larger ability problem, the normal output electrical power with the DUV laser at 258 nm could be over twenty W, which might be described as a extraordinary power degree for that DUV laser and lead to the unanticipated DUV laser machining final results. What's more, for top-energy DUV laser, the UV hurt with the nonlinear crystal, such as the Home windows for CLBO crystal as well as mirrors, is another important parameter for long term and secure operation.
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Equally the 1040 nm and 1078 nm laser come from a single 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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While in the scientific and industrial apps, the beam high-quality of the DUV laser can also be an essential parameter. Specifically, the beam top quality in the DUV laser drastically influences the laser machining outcomes. The beam top quality from the DUV laser is set by that of the fundamental laser as well as crystal to the frequency conversion. Lately, a superior-power DUV laser (>ten W) at 258 nm was reported by using a beam quality of M2 < 1.five, which was created by FHG of a Yb:YAG laser at 1030 nm using the CLBO crystal [thirteen]. This laser would result in an improved laser machining result when compared with the previous DUV lasers with greater M2.
The heartbeat duration of the 2nd Stokes light was shortened to five ns as proven in Determine more info 7a, one-shot picture with the oscilloscope, that's a standard phenomenon in Raman laser [44] although the heart beat length from the pump laser was ten ns.
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Tunable ultraviolet laser resource based upon stable-point out dye laser technologies and CsLiB6O10 harmonic generation
The conversion performance from basic NIR to DUV is from five% to 36% based on the noted brings about Table one. Growing the conversion efficiency will reduce the stress on the design and set up of the fundamental laser amplifier and also the electric ability usage. A very good beam top quality of the elemental laser will also lead into the expanding from the conversion effectiveness and also the suitable ability depth of your NIR and green laser within the SHG and FHG procedure, respectively. The highest conversion efficiencies from NIR to green and green to DUV laser by use of CLBO crystal are 70% and all-around 50%, respectively [twelve], which corresponds into the conversion effectiveness of 35% from basic to DUV.
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