Not known Factual Statements About CLBO Crystal
Not known Factual Statements About CLBO Crystal
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All-solid-condition ultraviolet lasers have been broadly Employed in the fields of mechanical flaw detection, lithography, micromachining and medicine for the benefits of tiny quantity, extended life, substantial performance, great beam high-quality, vast tuning and slender spectral line, and so on. Making use of high electricity around-infrared coherent gentle resource as the fundamental frequency source determined by nonlinear tuning technological know-how, generating ultraviolet coherent radiation by multistage frequency conversion is considered a vital technique to develop the ultraviolet coherent light supply.
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According to the proof-of-principle experiment, the conversion effectiveness of 23% implied the potential of obtaining significant-ability at the 2nd Stokes wavelength of your Raman laser. If the pump laser of 1078 nm could be attained at the standard ability of fifty W, the output electricity of its 2nd Stokes wavelength at 1512 nm can be over ten W. The look on the Raman laser cavity must be optimized to be able to avoid the problems in the M1 and diamond surface.
The real key issue of ultraviolet coherent mild resource primarily concentrates on the event of nonlinear optical frequency conversion crystal in ultraviolet band. The nonlinear optical crystal is amongst the problems for frequency transformation, so The expansion, dimensions, hurt resistance, conversion effectiveness and allowable parameter range of nonlinear optical crystal are necessary Progressively more.
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The two the 1040 nm and 1078 nm laser come from a person dual-wavelength Yb-doped fiber laser. Each and every laser is amplified by levels of fiber amplifier and Yb-doped resources amplifier, respectively.
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In the scientific and industrial purposes, the beam good quality with the DUV laser is also a vital parameter. Notably, the beam excellent in the DUV laser significantly has an effect on the laser machining outcomes. The beam excellent with the DUV laser is set by that of the basic laser as well as crystal for that frequency conversion. A short while ago, a superior-electrical power DUV laser (>ten W) at 258 nm was claimed with a beam high-quality of M2 < 1.5, which was produced by FHG of the Yb:YAG laser at 1030 nm utilizing the CLBO crystal [13]. This laser would cause a greater laser machining result in comparison to the earlier DUV lasers with more substantial M2.
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Its UV absorption edge reaches 180 nm. The effective nonlinear optical coefficient of CLBO for frequency doubling at 1064nm is about twice as substantial as that of KDP. CLBO crystals might be developed from the stoichiometric melt with reduce viscosity.
The event from the 193-nm laser was demonstrated by levels of SFG. So that you can scale the DUV laser electricity successfully, a brand new idea of the 193-nm DUV laser era is presented according to the diamond Raman laser.