A Secret Weapon For CLBO Crystal
A Secret Weapon For CLBO Crystal
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All-stable-point out ultraviolet lasers are actually widely used in the fields of mechanical flaw detection, lithography, micromachining and medication for some great benefits of smaller volume, very long lifetime, superior performance, excellent beam good quality, huge tuning and slender spectral line, and so on. Using significant power in close proximity to-infrared coherent light supply as the basic frequency resource depending on nonlinear tuning technologies, generating ultraviolet coherent radiation by multistage frequency conversion is considered a very important approach to create the ultraviolet coherent gentle supply.
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As an example, the current concave OC could get replaced by a plane mirror which could mitigate the facility density over the surface area of M1 and the diamond. What's more, applying high harm threshold coatings for M1 and diamond would also Enhance the output electricity with none damages. Then, the NIR laser for the 2nd Stokes wavelength could possibly be high plenty of, and also its fantastic beam high quality, to crank out the ultimate DUV laser at 193 nm using a significant average electrical power.
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Both equally the 1040 nm and 1078 nm laser come from a single dual-wavelength Yb-doped fiber laser. Each laser is amplified by levels of fiber amplifier and Yb-doped elements amplifier, respectively.
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In the scientific and industrial applications, the beam top quality on the DUV laser is likewise a very important parameter. Particularly, the beam quality of the DUV laser significantly affects the laser machining success. The beam high-quality of your DUV laser is set by that of the basic laser and the crystal for that frequency conversion. Not too long ago, a large-power DUV laser (>10 W) at 258 nm was reported by using a beam high quality of M2 < 1.five, which was generated by FHG of a Yb:YAG laser at 1030 nm utilizing the CLBO crystal [thirteen]. This laser would result in an even better laser machining result when compared more info to the prior DUV lasers with much larger M2.
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In addition, combining the solid-condition laser with other nonlinear process for example stimulated Raman scattering, NIR lasers might be obtained at new wavelengths with large ability and higher beam excellent, which was analyzed from the proof-of-theory experiment. This Raman laser plan provides a fresh route to the higher-energy DUV laser, especially on the wavelength of 193 nm.
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Its UV absorption edge reaches one hundred eighty nm. The successful nonlinear optical coefficient of CLBO for frequency doubling at 1064nm is about twice as significant as that of KDP. CLBO crystals might be grown within the stoichiometric melt with lower viscosity.
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