The smart Trick of CLBO Crystal That Nobody is Discussing

The smart Trick of CLBO Crystal That Nobody is Discussing

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However, in order to course of action the crystal is incredibly Superior producing procedures are expected. Because the dawn of the crystal, focusing on this obstacle, we are now the only real organization in the world which can be processed Within this crystal.

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We summarized The existing development position in the higher-power DUV laser both of those with the wavelength of FHG of your one-μm laser and at 193 nm. The modern improvement of your reliable-point out/fiber laser, plus the nonlinear optical crystals, prompts don't just the common ability but additionally the beam good quality (coherence) of your DUV lasers to an unparalleled amount.

The main element trouble of ultraviolet coherent light source primarily focuses on the development of nonlinear optical frequency conversion crystal in ultraviolet band. The nonlinear optical crystal is amongst the situations for frequency transformation, so The expansion, size, harm resistance, conversion performance and allowable parameter array of nonlinear optical crystal are necessary An increasing number of.

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LBO can also be a fantastic nonlinear crystal which is often placed on the SHG in the NIR to your green. The DUV laser is normally recognized by two stages of SFG inside the LBO crystals due to the fact there is no phase-matching angle for LBO to transform the environmentally friendly laser at 515 nm or 532 nm to the DUV directly by SHG [sixteen]. Just lately, the NSBBF crystal has also demonstrated its probable to get a large conversion efficiency from 532 nm to 266 nm. The stroll-off angle and deff on the NSBBF are Virtually similar to those of CLBO [seventeen].

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In the scientific and industrial programs, the beam good quality on the DUV laser can be a vital parameter. Specifically, the beam top quality of the DUV laser drastically affects the laser machining success. The beam good quality in the DUV laser is decided by that of the basic laser and the crystal to the frequency conversion. Lately, a significant-power DUV laser (>ten W) at 258 nm was reported by using a beam quality of M2 < 1.5, which was produced by FHG of the Yb:YAG laser at 1030 nm using the CLBO crystal [thirteen]. This laser would produce a much better laser machining consequence in comparison to the preceding DUV lasers with larger sized M2.

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Furthermore, combining the good-state laser with other nonlinear system including stimulated Raman scattering, NIR lasers can be obtained at new wavelengths with significant power and higher beam good quality, which was analyzed via the evidence-of-basic principle experiment. This Raman laser plan presents a new path to the high-energy DUV laser, Specifically on the wavelength of 193 nm.

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