CLBO Crystal Things To Know Before You Buy
CLBO Crystal Things To Know Before You Buy
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Nevertheless, to be able to procedure the crystal is extremely advanced producing techniques are essential. Considering that the dawn of the crystal, working on this challenge, we are actually the only enterprise on earth that could be processed In this particular crystal.
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We summarized the current progress standing from the superior-electricity DUV laser each at the wavelength of FHG with the 1-μm laser and at 193 nm. The modern development on the solid-condition/fiber laser, plus the nonlinear optical crystals, prompts don't just the common ability but in addition the beam quality (coherence) on the DUV lasers to an unparalleled stage.
The typical electric power from the NIR laser nonetheless has the opportunity for being improved to tens of watts such as 70 W [26] When the double-move configuration may very well be used for that Yb:YAG SCF amplifier phase. Therefore, In case the conversion performance of 31% from NIR to DUV can be still maintained at this greater electrical power issue, the normal output electric power with the DUV laser at 258 nm might be in excess of twenty W, which might be a exceptional energy degree to the DUV laser and produce the unanticipated DUV laser machining success. Additionally, for prime-electric power DUV laser, the UV problems with the nonlinear crystal, such as the windows for CLBO crystal as well as the mirrors, is another significant parameter for lasting and stable Procedure.
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Because of the thermal lens effect during the reliable-state lasers, In the event the heating management is inadequate, It's not easy to get the solid-condition laser with a substantial energy and also a high beam good quality at the same time. Just lately, with the event of The skinny disk laser and one-crystal fiber (SCF) laser, a substantial-ability laser at the basic wavelength (one μm) were understood with a good beam top quality In spite of a TEM00 mode beam [4,24], which would be great candidates for the basic with the DUV laser technology. One more prospect for the basic could be the superior-ability fiber laser which can be achieved by coherent beam mix with M2 price below 1.
On another aspect, the power scaling of your NIR laser is an additional facet to boost the ordinary electric power in the 193-nm DUV laser. Mainly because of the deficiency of the higher-ability amplification Remedy with the NIR laser (by way of example at 1553 nm), nonlinear frequency procedures such as optical parameter oscillation (OPO) may very well be applied to develop a wavelength converter by shifting the wavelength from one μm to the specified wavelength along with acquiring relative better energy [21]. website Not long ago, a diamond Raman laser confirmed its ability in attaining a significant power along with a high conversion efficiency in the 1st Stokes from the 1-μm laser [22,23], which implies the chance to be applied inside the 193-nm DUV laser era as a result of its large Raman attain and enormous frequency change.
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The beam profile shown in Figure 7b demonstrated a fantastic beam high-quality as among the merits of Raman laser, which would be useful to make a 193-nm DUV laser with a top quality beam.
Its UV absorption edge reaches 180 nm. The helpful nonlinear optical coefficient of CLBO for frequency doubling at 1064nm is about twice as large as that of KDP. CLBO crystals is often grown within the stoichiometric melt with lessen viscosity.
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