The Ultimate Guide To CLBO Crystal
The Ultimate Guide To CLBO Crystal
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Nevertheless, in order to system the crystal is rather Superior manufacturing tactics are necessary. Because the dawn of this crystal, working on this obstacle, we at the moment are the sole company on the earth that may be processed During this crystal.
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According to the evidence-of-basic principle experiment, the conversion efficiency of 23% implied the opportunity of reaching significant-electric power at the 2nd Stokes wavelength of your Raman laser. If your pump laser of 1078 nm may be acquired at the common electricity of 50 W, the output electrical power of its 2nd Stokes wavelength at 1512 nm may be a lot more than 10 W. The look in the Raman laser cavity ought to be optimized in an effort to avoid the damage of the M1 and diamond floor.
The main element trouble of ultraviolet coherent light-weight source primarily focuses on the development of nonlinear optical frequency conversion crystal in ultraviolet band. The nonlinear optical crystal is probably the problems for frequency transformation, so The expansion, measurement, destruction resistance, conversion efficiency and allowable parameter choice of nonlinear optical crystal are expected An increasing number of.
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LBO is also a superb nonlinear crystal which is usually placed on the SHG from the NIR for the inexperienced. The DUV laser is frequently understood by two phases of SFG inside the LBO crystals considering that there is no section-matching angle CLBO Crystal for LBO to transform the inexperienced laser at 515 nm or 532 nm for the DUV straight by SHG [sixteen]. Not long ago, the NSBBF crystal has also demonstrated its prospective to acquire a substantial conversion efficiency from 532 nm to 266 nm. The wander-off angle and deff on the NSBBF are Nearly comparable to Those people of CLBO [17].
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Inside the scientific and industrial applications, the beam quality with the DUV laser can be a crucial parameter. Especially, the beam high-quality on the DUV laser significantly has an effect on the laser machining final results. The beam high-quality in the DUV laser is set by that of the elemental laser along with the crystal for your frequency conversion. A short while ago, a substantial-power DUV laser (>10 W) at 258 nm was described having a beam excellent of M2 < 1.5, which was produced by FHG of the Yb:YAG laser at 1030 nm using the CLBO crystal [13]. This laser would bring on a greater laser machining consequence in comparison with the preceding DUV lasers with larger M2.
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Moreover, combining the stable-condition laser with other nonlinear process for example stimulated Raman scattering, NIR lasers might be reached at new wavelengths with high electrical power and significant beam quality, which was analyzed via the evidence-of-basic principle experiment. This Raman laser plan gives a different path to the high-energy DUV laser, Specially with the wavelength of 193 nm.
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The conversion efficiency from elementary NIR to DUV is from 5% to 36% based on the described ends in Desk 1. Rising the conversion efficiency will decrease the load on the look and set up of the basic laser amplifier and also the electric ability intake. A superb beam high quality of the basic laser may even contribute towards the expanding on the conversion effectiveness and the suitable electricity intensity with the NIR and environmentally friendly laser within the SHG and FHG procedure, respectively. The very best conversion efficiencies from NIR to environmentally friendly and eco-friendly to DUV laser by usage of CLBO crystal are 70% and around fifty%, respectively [12], which corresponds to the conversion efficiency of 35% from essential to DUV.
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