The 2-Minute Rule for CLBO Crystal
The 2-Minute Rule for CLBO Crystal
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On the other hand, in order to process the crystal is quite advanced producing approaches are required. Because the dawn of the crystal, focusing on this obstacle, we at the moment are the only firm on the earth which might be processed in this crystal.
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As an example, the current concave OC could be replaced by a aircraft mirror which could mitigate the ability density over the surface of M1 as well as the diamond. Additionally, making use of significant harm threshold coatings for M1 and diamond would also Increase the output ability without any damages. Then, the NIR laser for the 2nd Stokes wavelength could be large plenty of, as well as its great beam quality, to create the final DUV laser at 193 nm using a substantial normal electric power.
Then again, the beam high-quality of this greater electrical power DUV laser would develop into even worse as a consequence of more serious thermal and nonlinear effects. That's why, the frequency conversion procedures ought to be meticulously built to mitigate the aforementioned consequences. Thus, a large-electricity DUV laser with the FHG of one μm with a superb beam excellent may very well be received and may be beneficial for obtaining the shorter wavelength DUV lasers such as 193 nm by SFG.
Both the 1040 nm and 1078 nm laser originate from just one twin-wavelength Yb-doped fiber laser. Every single laser is amplified by stages of fiber amplifier and Yb-doped materials amplifier, respectively.
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Within the scientific and industrial applications, the beam high-quality with the DUV laser can be a crucial parameter. Especially, the beam excellent with the DUV laser drastically has an effect on the laser machining benefits. The beam quality with the DUV laser is determined by that of the basic laser as well as crystal for your frequency conversion. A short while ago, a substantial-power DUV laser (>10 W) at 258 nm was described with a beam top quality of M2 < 1.5, which was generated by FHG of a Yb:YAG laser at 1030 nm utilizing the CLBO crystal [thirteen]. This laser would produce a much better laser machining end result compared to the prior DUV lasers with greater M2.
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Its UV absorption edge reaches 180 nm. The helpful nonlinear optical coefficient of CLBO for frequency doubling at 1064nm is about two times as large as that of KDP. CLBO crystals is often grown with the stoichiometric melt with decrease viscosity.
The event from the 193-nm laser was shown by levels of SFG. To be able to scale the DUV laser electricity effectively, a fresh strategy of the 193-nm DUV laser generation is introduced according to the diamond Raman laser.