The smart Trick of CLBO Crystal That Nobody is Discussing
The smart Trick of CLBO Crystal That Nobody is Discussing
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All-solid-point out ultraviolet lasers happen to be extensively used in the fields of mechanical flaw detection, lithography, micromachining and medicine for the advantages of tiny volume, lengthy lifestyle, high performance, fantastic beam quality, vast tuning and narrow spectral line, and many others. Using high ability in close proximity to-infrared coherent mild resource as the basic frequency source according to nonlinear tuning technologies, making ultraviolet coherent radiation by multistage frequency conversion is considered an important strategy to create the ultraviolet coherent gentle supply.
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We summarized The existing improvement position with the large-energy DUV laser both of those with the wavelength of FHG from the one-μm laser and at 193 nm. The recent progress from the solid-condition/fiber laser, as well as the nonlinear optical crystals, prompts not merely the average electricity but will also the beam top quality (coherence) with the DUV lasers to an unparalleled amount.
The common electricity from the NIR laser still has the opportunity being improved to tens of watts such as 70 W [26] If your double-pass configuration could be utilized for the Yb:YAG SCF amplifier stage. Consequently, When the conversion performance of 31% from NIR to DUV could possibly be continue to taken care of at this bigger energy affliction, the average output electricity of your DUV laser at 258 nm could be in excess of twenty W, which would become a amazing power level for your DUV laser and bring about the unanticipated DUV laser machining benefits. Also, for top-electric power DUV laser, the UV problems of the nonlinear crystal, such as read more the windows for CLBO crystal along with the mirrors, is an additional crucial parameter for long lasting and stable Procedure.
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On another side, the facility scaling on the NIR laser is an additional element to increase the ordinary energy of your 193-nm DUV laser. Due to the deficiency of the large-power amplification Option in the NIR laser (for instance at 1553 nm), nonlinear frequency procedures like optical parameter oscillation (OPO) may very well be applied to make a wavelength converter by shifting the wavelength from one μm to the desired wavelength along with getting relative bigger energy [21]. Not long ago, a diamond Raman laser confirmed its capability in obtaining a superior electrical power and a higher conversion effectiveness with the 1st Stokes with the one-μm laser [22,23], which suggests the likelihood being utilized while in the 193-nm DUV laser era as a consequence of its significant Raman get and huge frequency shift.
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Tunable ultraviolet laser supply based upon good-point out dye laser technology and CsLiB6O10 harmonic technology
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The development with the 193-nm laser was demonstrated by phases of SFG. In order to scale the DUV laser electricity effectively, a whole new thought in the 193-nm DUV laser era is introduced based on the diamond Raman laser.