CLBO Crystal Fundamentals Explained
CLBO Crystal Fundamentals Explained
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On the other hand, in an effort to process the crystal is rather Highly developed production tactics are necessary. Since the dawn of the crystal, working on this obstacle, we are now the one business on this planet that can be processed With this crystal.
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We summarized The present development status in the superior-ability DUV laser both on the wavelength of FHG on the one-μm laser and at 193 nm. The recent advancement of your solid-state/fiber laser, as well as the nonlinear optical crystals, prompts not merely the typical energy but will also the beam excellent (coherence) of your DUV lasers to an unprecedented stage.
The real key trouble of ultraviolet coherent gentle resource mostly focuses on the development of nonlinear optical frequency conversion crystal in ultraviolet band. The nonlinear optical crystal has become the circumstances for frequency transformation, so The expansion, dimension, destruction resistance, conversion efficiency and allowable parameter range of nonlinear optical crystal are required Progressively more.
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Due to thermal lens effect within the solid-point out lasers, if the heating management is inadequate, It's not at all effortless to get the reliable-point out laser which has a significant electricity plus a superior beam good quality at the same time. Not too long ago, with the development of the thin disk laser and single-crystal fiber (SCF) laser, a superior-electric power laser at the fundamental wavelength (one μm) were realized with an excellent beam top quality Despite a TEM00 manner beam [four,24], which would be superior candidates for the elemental with the DUV laser era. One more candidate for the elemental could be the substantial-electrical power fiber laser which might be achieved by coherent beam blend with M2 value below one.
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While in the scientific and industrial programs, the beam quality of your DUV laser is likewise a crucial parameter. Specifically, the beam high quality with the DUV laser substantially has an effect on the laser machining benefits. The beam quality on the DUV laser is decided by that of the basic laser along with the crystal with the frequency conversion. Just lately, a superior-energy DUV laser (>10 W) at 258 nm was described with a beam top quality of M2 < one.5, which was created by FHG of the Yb:YAG laser at 1030 nm utilizing the CLBO crystal [13]. This laser would bring on a far better laser machining result when compared with the past DUV lasers with much larger M2.
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Additionally, combining the stable-state laser with other get more info nonlinear process which include stimulated Raman scattering, NIR lasers may be reached at new wavelengths with higher power and high beam quality, which was tested via the proof-of-principle experiment. This Raman laser plan presents a completely new route to the substantial-electricity DUV laser, Particularly with the wavelength of 193 nm.
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