The smart Trick of CLBO Crystal That Nobody is Discussing
The smart Trick of CLBO Crystal That Nobody is Discussing
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All-reliable-state ultraviolet lasers have already been greatly Employed in the fields of mechanical flaw detection, lithography, micromachining and drugs for some great benefits of compact volume, very long lifetime, superior performance, excellent beam good quality, broad tuning and narrow spectral line, etcetera. Making use of higher ability in the vicinity of-infrared coherent light-weight supply as the elemental frequency supply dependant on nonlinear tuning technologies, generating ultraviolet coherent radiation by multistage frequency conversion is considered to be an important strategy to create the ultraviolet coherent gentle resource.
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We summarized The existing growth position from the superior-energy DUV laser both for the wavelength of FHG in the 1-μm laser and at 193 nm. The current development with the sound-state/fiber laser, and also the nonlinear optical crystals, prompts not merely the typical power but in addition the beam high quality (coherence) with the DUV lasers to an unprecedented degree.
For illustration, The present concave OC could be replaced by a airplane mirror which could mitigate the facility density over the surface of M1 plus the diamond. Furthermore, making use of large harm threshold coatings for M1 and diamond would also Increase the output electric power with no damages. Then, the NIR laser on the 2nd Stokes wavelength could possibly be high plenty of, in addition to its good beam high quality, to create the ultimate DUV laser at 193 nm using a high typical ability.
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Both equally the 1040 nm and 1078 nm laser come from a single dual-wavelength Yb-doped fiber laser. Each individual laser is amplified by phases of fiber amplifier and Yb-doped supplies amplifier, respectively.
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Inside the scientific and industrial apps, the beam excellent of your DUV laser is usually an important parameter. Particularly, the beam quality of your DUV laser radically influences the laser machining results. The beam quality on the DUV laser is determined by that of the basic laser and also the crystal with the frequency conversion. Not long ago, a higher-ability DUV laser (>10 W) at 258 nm was described with a beam good quality of M2 < one.five, which was generated by FHG of a Yb:YAG laser at 1030 nm utilizing the CLBO crystal [thirteen]. This laser would lead to a much better laser machining final result in comparison with the preceding DUV lasers with more substantial M2.
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What's more, combining the stable-state laser with other nonlinear method such as stimulated Raman scattering, NIR lasers may be obtained at new wavelengths with higher electric power and high beam top quality, which was examined because of the evidence-of-principle experiment. This Raman laser plan delivers a completely new path to the superior-ability DUV laser, Primarily at the wavelength of 193 nm.
Tunable ultraviolet laser source according to sound-state dye laser engineering and CsLiB6O10 harmonic generation
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The event from the 193-nm laser was shown by levels of SFG. As a way to scale the DUV laser ability efficiently, a completely new idea on the 193-nm DUV laser technology is presented depending on the diamond Raman laser.