A Simple Key For CLBO Crystal Unveiled
A Simple Key For CLBO Crystal Unveiled
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Nevertheless, so that you can course of action the crystal is very Innovative manufacturing approaches are necessary. Considering that the dawn of this crystal, engaged on this challenge, we are actually the only real business in the world which can be processed In this particular crystal.
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We summarized The existing progress standing from the superior-electricity DUV laser each within the wavelength of FHG in the one-μm laser and at 193 nm. The latest progress on the strong-condition/fiber laser, in addition to the nonlinear optical crystals, prompts not only the common ability but additionally the beam excellent (coherence) of your DUV lasers to an unprecedented level.
The typical electric power in the NIR laser nonetheless has the possible being enhanced to tens of watts including 70 W [26] If your double-pass configuration could be used with the Yb:YAG SCF amplifier phase. For this reason, When the conversion efficiency of 31% from NIR to DUV could possibly be even now preserved at this bigger power ailment, the average output energy from the DUV laser at 258 nm might be over 20 W, which might certainly be a amazing electricity degree for the DUV laser and lead to the unanticipated DUV laser machining benefits. Additionally, for high-ability DUV laser, the UV problems from the nonlinear crystal, such as the windows for CLBO crystal as well as mirrors, is another vital parameter for long run and secure Procedure.
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On the other side, the power scaling of your NIR laser is yet another factor to boost the typical power with the 193-nm DUV laser. A result of the lack of the superior-electricity amplification Answer of your NIR laser (by way of example at 1553 nm), nonlinear frequency procedures for instance optical parameter oscillation (OPO) could possibly be placed on create a wavelength converter by shifting the wavelength from 1 μm to the specified wavelength and obtaining relative increased ability [21]. Not too long ago, a diamond Raman laser confirmed its means in reaching a substantial ability along with a substantial conversion effectiveness for the 1st Stokes of your one-μm laser [22,23], which means the chance to generally be used during the 193-nm DUV laser technology thanks to its superior Raman attain and enormous frequency shift.
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The conversion performance from basic NIR click here to DUV is from five% to 36% according to the claimed leads to Desk one. Raising the conversion efficiency will decrease the burden on the design and set up of the elemental laser amplifier plus the electric electricity use. An excellent beam high-quality of the fundamental laser will even add to the growing on the conversion performance as well as the appropriate electrical power intensity in the NIR and inexperienced laser while in the SHG and FHG course of action, respectively. The very best conversion efficiencies from NIR to green and eco-friendly to DUV laser by use of CLBO crystal are 70% and about 50%, respectively [twelve], which corresponds into the conversion performance of 35% from elementary to DUV.
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