Examine This Report on CLBO Crystal
Examine This Report on CLBO Crystal
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The average ability on the NIR laser nevertheless has the potential to generally be enhanced to tens of watts including 70 W [26] When the double-go configuration could possibly be used for the Yb:YAG SCF amplifier stage. Hence, If your conversion efficiency of 31% from NIR to DUV may very well be nonetheless taken care of at this higher electric power condition, the common output ability from the DUV laser at 258 nm may be much more than 20 W, which would be considered a amazing ability amount for the DUV laser and result in the unanticipated DUV laser machining final results. Also, for prime-electric power DUV laser, the UV hurt on the nonlinear crystal, including the windows for CLBO crystal and also the mirrors, is another important parameter for long term and secure Procedure.
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Because of the thermal lens influence inside the strong-point out lasers, If your heating administration is insufficient, It is far from effortless to obtain the stable-state laser which has a large power plus a high beam good quality at the same time. Not too long ago, with the event of The skinny disk laser and one-crystal fiber (SCF) laser, a high-electrical power laser at the fundamental wavelength (1 μm) had been recognized with a fantastic beam quality even with a TEM00 mode beam [4,24], which would be great candidates for the fundamental on the DUV laser technology. A different prospect for the basic is definitely the significant-electric power fiber laser which may very well be obtained by coherent beam blend with M2 worth under 1.
On one other aspect, the power scaling in the NIR laser is another part to improve the common ability of your 193-nm DUV laser. Because of the not enough the substantial-power amplification Option from the NIR laser (such as at 1553 nm), nonlinear frequency processes which include optical parameter oscillation (OPO) could possibly be placed on develop a wavelength converter by shifting the wavelength from one μm to the specified wavelength in addition to acquiring relative higher electricity [21]. A short while ago, a diamond Raman laser showed its capacity in accomplishing a high energy plus a significant conversion performance within the 1st Stokes of the 1-μm laser [22,23], which implies the chance to generally be utilized during the 193-nm DUV laser technology thanks to its superior Raman attain and huge frequency shift.
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The beam profile shown in Determine 7b shown check here a good beam top quality as one of several deserves of Raman laser, which might be valuable to crank out a 193-nm DUV laser with a top quality beam.
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The development on the 193-nm laser was shown by stages of SFG. So that you can scale the DUV laser electrical power effectively, a whole new thought of the 193-nm DUV laser generation is offered dependant on the diamond Raman laser.