Examine This Report on CLBO Crystal
Examine This Report on CLBO Crystal
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The normal electric power from the NIR laser nonetheless has the possible to become enhanced to tens of watts for instance 70 W [26] In case the double-pass configuration could be used to the Yb:YAG SCF amplifier stage. For this reason, In the event the conversion performance of 31% from NIR to DUV could possibly be continue to taken care of at this better power issue, the average output electrical power with the DUV laser at 258 nm can be over twenty W, which would certainly be a exceptional ability level with the DUV laser and bring about the unanticipated DUV laser machining effects. Moreover, for high-electrical power DUV laser, the UV hurt with the nonlinear crystal, such as the windows for CLBO crystal and also the mirrors, is another important parameter for long term and steady operation.
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Because of the thermal lens result within the solid-point out lasers, In case the heating management is inadequate, It isn't uncomplicated to obtain the good-condition laser having a superior electricity get more info along with a higher beam quality at the same time. Not too long ago, with the event of the thin disk laser and solitary-crystal fiber (SCF) laser, a superior-electrical power laser at the basic wavelength (one μm) were understood with a great beam good quality even with a TEM00 mode beam [4,24], which might be fantastic candidates for the elemental of the DUV laser generation. An additional candidate for the fundamental will be the high-energy fiber laser which could possibly be realized by coherent beam blend with M2 value below 1.
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During the scientific and industrial apps, the beam top quality in the DUV laser can be a vital parameter. Specifically, the beam top quality from the DUV laser dramatically has an effect on the laser machining final results. The beam high-quality with the DUV laser is set by that of the fundamental laser as well as the crystal for the frequency conversion. Just lately, a large-energy DUV laser (>ten W) at 258 nm was described by using a beam high quality of M2 < one.five, which was generated by FHG of the Yb:YAG laser at 1030 nm utilizing the CLBO crystal [thirteen]. This laser would result in an even better laser machining result compared to the former DUV lasers with greater M2.
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The beam profile demonstrated in Determine 7b shown a great beam excellent as one of the merits of Raman laser, which would be useful to crank out a 193-nm DUV laser with a high quality beam.
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The development of your 193-nm laser was demonstrated by levels of SFG. So as to scale the DUV laser electricity effectively, a different principle of the 193-nm DUV laser era is introduced according to the diamond Raman laser.