In this paper, the new lapping slurry and sprucing slurry are released. As well as deliquescence diploma of CLBO is fallen to lowest. A new Doing work technology can be adopted. Right after tough polishing, the focus of extremely-precision sharpening slurry is elevated thoroughly. So does the ultra-precision sprucing velocity, along with the wiping pace is quicker compared to the deliquescence pace. The CLBO crystal surface roughness can reach 1nm and preserve the area high-quality very well. Access as a result of your institution
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In accordance with the evidence-of-basic principle experiment, the conversion performance of 23% implied the possibility of obtaining significant-power at the second Stokes wavelength on the Raman laser. If your pump laser of 1078 nm can be attained at the common electricity of fifty W, the output electrical power of its 2nd Stokes wavelength at 1512 nm could possibly be a lot more than 10 W. The design of your Raman laser cavity need to be optimized so that you can stay away from the injury from the M1 and diamond area.
The important thing dilemma of ultraviolet coherent light-weight resource mainly focuses on the event of nonlinear optical frequency conversion crystal in ultraviolet band. The nonlinear optical crystal is among the situations for frequency transformation, so the growth, dimension, harm resistance, conversion efficiency and allowable parameter range of nonlinear optical crystal are demanded Increasingly more.
On the flip side, the beam quality of this increased power DUV laser would come to be even worse due to more severe thermal and nonlinear effects. Hence, the frequency conversion procedures need to be diligently made to mitigate the aforementioned effects. Thus, a high-power DUV laser within the FHG of one μm with a great beam quality may very well be acquired and may be useful for obtaining the shorter wavelength DUV lasers which include 193 nm by SFG.
Due to thermal lens impact from the strong-condition lasers, if the heating management is insufficient, It's not quick to obtain the sound-condition laser which has a higher electric power and a higher beam top quality concurrently. Not long ago, with the event of the thin disk laser and single-crystal fiber (SCF) laser, a large-electricity laser at the basic wavelength (1 μm) had been understood with a fantastic beam excellent even with a TEM00 manner beam [four,24], which would be good candidates for the elemental on the DUV laser generation. An additional prospect for the basic will be the superior-electrical power fiber laser which may be reached by coherent beam mix with M2 worth fewer than one.
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The pulse length of the 2nd Stokes light was shortened to 5 ns as demonstrated in Determine 7a, just one-shot photo within the oscilloscope, which can be a typical phenomenon in Raman laser [forty four] though the pulse duration in the pump laser was 10 ns.
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The beam profile shown in Determine 7b demonstrated a very good beam high quality as among the deserves of Raman laser, which might be useful to crank out a 193-nm DUV laser with a top quality beam.
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The event of your 193-nm laser was demonstrated by stages of SFG. In order to scale the DUV laser ability efficiently, a different thought from the 193-nm DUV laser era is offered determined by the diamond Raman laser.