CLBO Crystal Fundamentals Explained
CLBO Crystal Fundamentals Explained
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On the other hand, to be able to course of action the crystal is incredibly State-of-the-art producing strategies are demanded. Considering that the dawn of this crystal, working on this challenge, we at the moment are the sole business on the earth which can be processed In this particular crystal.
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By way of example, The present concave OC could get replaced by a airplane mirror which could mitigate the power density to the floor of M1 along with the diamond. Furthermore, applying high problems threshold coatings for M1 and diamond would also Enhance the output power without any damages. Then, the NIR laser in the 2nd Stokes wavelength can be high sufficient, in addition to its good beam excellent, to crank out the ultimate DUV laser at 193 nm using a substantial common electricity.
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The two the 1040 nm and 1078 nm laser originate from a person twin-wavelength Yb-doped fiber laser. Each and every laser is amplified by levels of fiber amplifier and Yb-doped components amplifier, respectively.
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From the scientific and industrial applications, the beam high quality from the DUV laser can also be an essential parameter. Particularly, the beam high-quality with the DUV laser substantially impacts the laser machining effects. The beam top quality of your DUV laser is determined by that of the elemental laser along with the crystal for the frequency conversion. Not long ago, a large-energy DUV laser (>10 W) at 258 nm was documented which has a beam top quality of M2 < 1.five, which was created by FHG of the Yb:YAG laser at 1030 nm utilizing the CLBO crystal [thirteen]. This laser would result in an improved laser machining consequence in comparison to the previous DUV lasers with greater M2.
The heart beat length of the second Stokes gentle was shortened to 5 ns as revealed in Figure 7a, a single-shot photo from your oscilloscope, which is a common phenomenon in Raman laser [forty four] although the heart beat period of your pump laser was 10 ns.
Cesium Lithium Borate (CsLiB6O10 or CLBO) is the best non-linear crystal which generates ultraviolet harmonics in the Nd:YAG essential laser wavelength. In order to enhance the damage threshold, low CLBO area roughness, by extremely-precision machining, is required. Because the CLBO crystal has easy hydroscopic response and micro scratches in machining, ultra-precise machining in the CLBO crystal is usually a challenging technical difficulty.
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Its UV absorption edge reaches 180 nm. The productive nonlinear optical coefficient of more info CLBO for frequency doubling at 1064nm is about two times as massive as that of KDP. CLBO crystals might be developed in the stoichiometric melt with decrease viscosity.
The development with the 193-nm laser was shown by stages of SFG. So as to scale the DUV laser energy proficiently, a brand new principle of your 193-nm DUV laser generation is presented determined by the diamond Raman laser.