The Basic Principles Of CLBO Crystal

The Basic Principles Of CLBO Crystal

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We summarized the current advancement standing of your higher-ability DUV laser each in the wavelength of FHG on the 1-μm laser and at 193 nm. The recent enhancement in the good-state/fiber laser, plus the nonlinear optical crystals, prompts not only the common ability but additionally the beam excellent (coherence) of the DUV lasers to an unparalleled degree.

For example, The existing concave OC could be replaced by a plane mirror which could mitigate the facility density within the floor of M1 along with the diamond. Furthermore, using higher hurt threshold coatings for M1 and diamond would also Enhance the output electric power with none damages. Then, the NIR laser for the 2nd Stokes wavelength might be large adequate, together with its excellent beam high-quality, to generate the ultimate DUV laser at 193 nm having a significant normal electricity.

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The two the click here 1040 nm and 1078 nm laser come from a person dual-wavelength Yb-doped fiber laser. Each and every laser is amplified by stages of fiber amplifier and Yb-doped elements amplifier, respectively.

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While in the scientific and industrial applications, the beam high-quality with the DUV laser can be a crucial parameter. Particularly, the beam excellent from the DUV laser radically affects the laser machining success. The beam good quality of the DUV laser is set by that of the elemental laser and the crystal to the frequency conversion. A short while ago, a significant-power DUV laser (>10 W) at 258 nm was documented by using a beam high-quality of M2 < one.five, which was created by FHG of the Yb:YAG laser at 1030 nm utilizing the CLBO crystal [thirteen]. This laser would lead to an improved laser machining consequence in comparison to the earlier DUV lasers with greater M2.

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In addition, combining the stable-condition laser with other nonlinear system such as stimulated Raman scattering, NIR lasers might be attained at new wavelengths with substantial ability and higher beam high quality, which was tested from the evidence-of-theory experiment. This Raman laser scheme offers a brand new path to the significant-electricity DUV laser, Specifically in the wavelength of 193 nm.

The beam profile proven in Figure 7b demonstrated a great beam top quality as one of many merits of Raman laser, which might be useful to create a 193-nm DUV laser with a high quality beam.

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