CLBO Crystal Things To Know Before You Buy
CLBO Crystal Things To Know Before You Buy
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All-reliable-condition ultraviolet lasers have already been commonly Employed in the fields of mechanical flaw detection, lithography, micromachining and medicine for the advantages of small quantity, very long everyday living, significant effectiveness, great beam top quality, broad tuning and slender spectral line, and many others. Using higher electric power around-infrared coherent light supply as the elemental frequency source depending on nonlinear tuning engineering, building ultraviolet coherent radiation by multistage frequency conversion is considered an essential technique to create the ultraviolet coherent gentle source.
In comparison with BBO it characteristics much larger spectral and temperature acceptance, better angle tolerance, plus a lesser walk-off angle. from 3289 $ shipping and delivery
Based on the evidence-of-basic principle experiment, the conversion effectiveness of 23% implied the opportunity of obtaining superior-electrical power at the next Stokes wavelength on the Raman laser. If your pump laser of 1078 nm can be attained at the average power of fifty W, the output electric power of its 2nd Stokes wavelength at 1512 nm could be over 10 W. The look with the Raman laser cavity must be optimized in an effort to stay away from the harm of the M1 and diamond floor.
The standard energy of your NIR laser however has the probable for being enhanced to tens of watts like 70 W [26] In the event the double-pass configuration could possibly be used for that Yb:YAG SCF amplifier phase. As a result, In case the conversion efficiency of 31% from NIR to DUV may be nonetheless managed at this larger ability problem, the standard output energy on the DUV laser at 258 nm may very well be greater than 20 W, which would certainly be a remarkable electricity stage for that DUV laser and produce the unanticipated DUV laser machining outcomes. What's more, for high-electrical power DUV laser, the UV hurt on the nonlinear crystal, including the windows for CLBO crystal and also the mirrors, is an additional essential parameter for long-term and stable Procedure.
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As a result of thermal lens effect in the solid-point out lasers, In case the heating management is inadequate, It's not simple to acquire the sound-point out laser using a high electric power along with a superior beam excellent at the same time. A short while ago, with the development of The skinny disk laser and solitary-crystal fiber (SCF) laser, a superior-power laser at the fundamental wavelength (one μm) had been recognized with a good beam good quality even with a TEM00 manner beam [4,24], which might be superior candidates for the basic with the DUV laser technology. A different prospect for the elemental is the higher-power fiber laser which might be accomplished by coherent beam combination with M2 worth a lot less than one.
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Within the scientific and industrial applications, the beam high quality from the DUV laser can also be a crucial parameter. Specifically, the beam high quality of your DUV laser significantly influences the laser machining final results. The beam high quality of your DUV laser is set by that of the fundamental laser plus the crystal to the frequency conversion. Lately, a significant-electrical power DUV laser (>ten W) at 258 nm was noted that has a beam top quality of M2 < one.five, which was created by FHG of a Yb:YAG laser at 1030 nm using the CLBO crystal [thirteen]. This laser would lead to an even better laser machining result when compared with the previous DUV lasers with greater M2.
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The conversion efficiency from essential NIR to DUV is from five% to 36% based on the reported ends in Table one. Growing the conversion effectiveness will reduce the load on the look and setup of the basic laser amplifier along with the electric powered energy intake. A good beam good quality of the elemental laser will even lead into the growing on the conversion performance as well as the appropriate electrical power intensity of your NIR and green laser inside the SHG and FHG course of action, respectively. The best conversion efficiencies from NIR to inexperienced and inexperienced to DUV laser by utilization of CLBO crystal are 70% and all over fifty%, respectively [12], which corresponds towards the conversion efficiency of 35% from fundamental to DUV.
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