The Basic Principles Of CLBO Crystal

Nonetheless, so as to approach the crystal is extremely Highly developed producing strategies are required. Considering that the dawn of this crystal, focusing on this obstacle, we are now the one organization in the world which can be processed in this crystal.

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We summarized the current enhancement position from the high-electric power DUV laser both equally with the wavelength of FHG from the one-μm laser and at 193 nm. The current progress of the strong-condition/fiber laser, together with the nonlinear optical crystals, prompts not only the typical electrical power but in addition the beam good quality (coherence) on the DUV lasers to an unprecedented level.

The average ability with the NIR laser even now has the prospective to be enhanced to tens of watts like 70 W [26] if the double-move configuration can be utilized for the Yb:YAG SCF amplifier phase. That's why, In the event the conversion performance of 31% from NIR to DUV may very well be nevertheless managed at this increased ability problem, the normal output power in the DUV laser at 258 nm can be greater than 20 W, which would be described as a extraordinary energy level for your DUV laser and bring about the unanticipated DUV laser machining results. Also, for prime-power DUV laser, the UV harm in the nonlinear crystal, including the windows for CLBO crystal along with the mirrors, is an additional critical parameter for long-lasting and stable Procedure.

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On the other facet, the facility scaling in the NIR laser is another component to improve the regular energy of your 193-nm DUV laser. Due to the deficiency of the large-power amplification Resolution from the NIR laser (as an example at 1553 nm), nonlinear frequency procedures like optical parameter oscillation (OPO) can be applied to create a wavelength converter by shifting the wavelength from 1 μm to the specified wavelength in addition to acquiring relative higher power [21]. Not long ago, a diamond Raman laser confirmed its capacity in accomplishing a higher electricity and a large conversion efficiency on the 1st Stokes in the 1-μm laser [22,23], which implies the possibility to become applied in the 193-nm DUV laser technology thanks to its superior Raman get and huge frequency shift.

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What's more, combining the strong-condition laser with other nonlinear process including stimulated Raman scattering, NIR lasers can be accomplished at new wavelengths with significant power and high beam high-quality, which was analyzed by the proof-of-principle experiment. This Raman laser scheme gives a whole new path to the superior-electric power DUV laser, Primarily within the wavelength of 193 nm.

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Its UV absorption edge reaches a hundred and eighty nm. The powerful nonlinear optical coefficient of CLBO for frequency doubling at 1064nm is about twice as significant as that of KDP. CLBO crystals is often grown within the stoichiometric melt with lessen viscosity.

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