CLBO Crystal Fundamentals Explained
CLBO Crystal Fundamentals Explained
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Having said that, so as to method the crystal may be very advanced manufacturing techniques are demanded. For the reason that dawn of this crystal, engaged on this challenge, we at the moment are the only firm on the earth which might be processed In this particular crystal.
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Based on the evidence-of-basic principle experiment, the conversion performance of 23% implied the opportunity of reaching substantial-ability at the 2nd Stokes wavelength of the Raman laser. When the pump laser of 1078 nm could possibly be acquired at the common electricity of 50 W, the output electric power of its 2nd Stokes wavelength at 1512 nm could be a lot more than ten W. The design in the Raman laser cavity must be optimized so that you can steer clear of the problems of your M1 and diamond surface area.
The typical ability on the NIR laser nevertheless has the potential being improved to tens of watts for instance 70 W [26] Should the double-move configuration might be utilized with the Yb:YAG SCF amplifier phase. Hence, Should the conversion efficiency of 31% from NIR to DUV can be nevertheless managed at this greater energy condition, the normal output electrical power in the DUV laser at 258 nm might be in excess of twenty W, which would be described as a remarkable energy stage for the DUV laser and result in the unanticipated DUV laser machining final results. Additionally, for top-power DUV laser, the UV damage of the nonlinear crystal, such as click here the Home windows for CLBO crystal plus the mirrors, is an additional critical parameter for long run and secure Procedure.
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LBO is likewise a fantastic nonlinear crystal which is often placed on the SHG through the NIR on the green. The DUV laser is usually recognized by two levels of SFG within the LBO crystals considering the fact that there isn't a period-matching angle for LBO to transform the eco-friendly laser at 515 nm or 532 nm towards the DUV straight by SHG [sixteen]. Not too long ago, the NSBBF crystal has also shown its likely to get a high conversion effectiveness from 532 nm to 266 nm. The walk-off angle and deff with the NSBBF are Virtually much like Those people of CLBO [seventeen].
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The pulse duration of the next Stokes light-weight was shortened to five ns as revealed in Figure 7a, only one-shot image with the oscilloscope, that is a typical phenomenon in Raman laser [forty four] while the heart beat period of your pump laser was 10 ns.
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The beam profile shown in Figure 7b demonstrated a fantastic beam high quality as one of several deserves of Raman laser, which might be beneficial to produce a 193-nm DUV laser with a high quality beam.
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