On the other hand, in an effort to system the crystal is rather Sophisticated producing procedures are necessary. Since the dawn of this crystal, engaged on this challenge, we are actually the sole company in the world that could be processed During this crystal.
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The normal ability from the NIR laser continue to has the opportunity to be enhanced to tens of watts for example 70 W [26] In the event the double-go configuration may very well be used for the Yb:YAG SCF amplifier phase. Therefore, In the event the conversion efficiency of 31% from NIR to DUV may be even now taken care of at this bigger electric power problem, the average output electricity from the DUV laser at 258 nm could be over twenty W, which might be considered a amazing power level for the DUV laser and bring about the unanticipated DUV laser machining benefits. Also, for prime-electric power DUV laser, the UV destruction of your nonlinear crystal, such as the windows for CLBO crystal and the mirrors, is another crucial parameter for long run and stable operation.
Then again, the beam high quality of this increased energy DUV laser would develop into even worse on account of extra severe thermal and nonlinear consequences. That's why, the frequency conversion procedures need to be very carefully meant to mitigate the aforementioned effects. As a result, a significant-electrical power DUV laser with the FHG of one μm with a good beam quality might be obtained and may be helpful for obtaining the shorter wavelength DUV lasers like 193 nm by SFG.
The two the 1040 nm and 1078 nm laser come from a single twin-wavelength Yb-doped fiber laser. Just about every laser is amplified by phases of fiber amplifier and Yb-doped components amplifier, respectively.
On the other facet, the ability scaling in the NIR laser is another aspect to boost the typical power of your 193-nm DUV laser. Mainly because of the deficiency of the significant-electricity amplification Option in the NIR laser (for instance at 1553 nm), nonlinear frequency procedures including optical parameter oscillation (OPO) might be placed on create a wavelength converter by shifting the wavelength from 1 μm to the specified wavelength as well as obtaining relative greater electric power [21]. Recently, a diamond Raman laser showed its potential in achieving a large electric power and a higher conversion effectiveness with the 1st Stokes on the 1-μm laser [22,23], which suggests the likelihood for being used from the 193-nm DUV laser technology because of its substantial Raman attain and enormous frequency change.
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Cesium Lithium Borate (CsLiB6O10 or CLBO) is the simplest non-linear crystal which generates ultraviolet click here harmonics of your Nd:YAG essential laser wavelength. So as to increase the hurt threshold, lower CLBO surface area roughness, by ultra-precision machining, is necessary. Since the CLBO crystal has straightforward hydroscopic reaction and micro scratches in machining, extremely-exact machining from the CLBO crystal is really a tough technological challenge.
Tunable ultraviolet laser supply determined by stable-point out dye laser technological know-how and CsLiB6O10 harmonic technology
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