The 2-Minute Rule for CLBO Crystal
The 2-Minute Rule for CLBO Crystal
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The common energy from the NIR laser still has the opportunity being improved to tens of watts which include 70 W [26] When the double-move configuration might be used for your Yb:YAG SCF amplifier phase. Consequently, if the conversion effectiveness of 31% from NIR to DUV could be even now maintained at this increased power issue, the average output electricity of your DUV laser at 258 nm could possibly be in excess of twenty W, which might be considered a impressive electric power amount with the DUV laser and result in the unanticipated DUV laser machining success. Moreover, for top-power DUV laser, the UV harm from the nonlinear crystal, including the Home windows for CLBO crystal as well as mirrors, is another essential parameter for long-term and stable Procedure.
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The two the 1040 nm and 1078 nm laser come from just one dual-wavelength Yb-doped fiber laser. Every laser is amplified by levels of fiber amplifier and Yb-doped products amplifier, respectively.
On the opposite side, the facility scaling with the NIR laser is yet another component to enhance the regular electricity from the 193-nm DUV laser. A result of the insufficient the substantial-energy amplification solution with the NIR laser (as an example at 1553 nm), nonlinear frequency procedures like optical parameter oscillation (OPO) can be applied to establish a wavelength converter by shifting the wavelength from 1 μm to the desired wavelength as well as obtaining relative better electricity [21]. Not long ago, a diamond Raman laser confirmed its capacity in accomplishing a high electrical power and also a superior conversion performance within the 1st Stokes of the 1-μm laser [22,23], which implies the possibility to become applied inside the 193-nm DUV laser generation on account of its substantial Raman achieve and huge frequency shift.
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Tunable ultraviolet laser source depending on reliable-condition dye laser know-how and CsLiB6O10 harmonic era
The conversion efficiency from basic NIR to DUV is from five% to 36% according to the described leads to Desk one. Escalating the conversion efficiency will reduce the load on the look and setup of the elemental laser amplifier in addition to the electrical energy usage. A great beam good quality of the elemental laser can even lead to your raising in the conversion effectiveness in addition to the appropriate electricity intensity from the NIR and eco-friendly laser from the SHG and FHG course of action, respectively. The highest conversion efficiencies from NIR to environmentally friendly and environmentally friendly to DUV laser by use of CLBO crystal are 70% and all-around fifty%, respectively [12], which corresponds into the conversion efficiency of 35% from elementary to DUV.
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