5 Essential Elements For CLBO Crystal
5 Essential Elements For CLBO Crystal
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Nevertheless, so that you can approach the crystal is incredibly Highly developed producing methods are essential. Considering that the dawn of the crystal, working on this obstacle, we at the moment are the sole corporation in the world which might be processed With this crystal.
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In accordance with the evidence-of-principle experiment, the conversion efficiency of 23% implied the potential of accomplishing superior-electric power at the 2nd Stokes wavelength from the Raman laser. If your pump laser of 1078 nm might be acquired at the normal ability of fifty W, the output ability of its 2nd Stokes wavelength at 1512 nm might be greater than ten W. The look on the Raman laser cavity need to be optimized to be able to stay away from the injury in the M1 and diamond surface area.
The standard power with the NIR laser nevertheless has the likely to get improved to tens of watts for instance 70 W [26] In case the double-pass configuration may very well be utilized with the Yb:YAG SCF amplifier stage. Hence, When the conversion performance of 31% from NIR to DUV could possibly be still preserved at this higher electricity situation, the standard output electricity of the DUV laser at 258 nm may very well be greater than twenty W, which might certainly be a exceptional power degree to the DUV laser and cause the unanticipated DUV laser machining success. Moreover, for top-ability DUV laser, the UV hurt from the nonlinear crystal, including the windows for CLBO crystal and the mirrors, is yet another critical parameter for long-term and stable operation.
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LBO is usually a superb nonlinear crystal which is usually placed on the SHG from the NIR for the environmentally friendly. The DUV laser is generally recognized by two phases of SFG from the LBO crystals given that there is no stage-matching angle for LBO to convert the environmentally friendly laser at 515 nm or 532 nm to the DUV immediately by SHG [16]. Just lately, the NSBBF crystal has also revealed its potential to obtain a significant conversion performance from 532 nm to 266 nm. The stroll-off angle and deff on the NSBBF are Virtually much like those of CLBO [seventeen].
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Cesium Lithium Borate (CsLiB6O10 or CLBO) is the best non-linear crystal which generates ultraviolet harmonics with the Nd:YAG elementary laser wavelength. So as to enrich the problems threshold, lower CLBO surface area roughness, by extremely-precision machining, is necessary. Since the CLBO crystal has simple hydroscopic response and micro scratches in machining, ultra-specific machining on the CLBO crystal is really a challenging technological challenge.
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The conversion efficiency from essential NIR to DUV is from 5% to 36% in accordance with the documented brings about Table one. Growing the conversion performance will reduce the load on the look and setup of the basic laser amplifier as well as the electrical ability usage. A fantastic beam quality of the basic laser can even contribute for the raising of the conversion efficiency along with the suitable electric power depth with the NIR and environmentally friendly laser inside the SHG and FHG process, respectively. The highest conversion efficiencies from NIR to environmentally friendly and inexperienced to DUV laser by utilization of CLBO crystal are 70% and all around 50%, respectively [12], which corresponds to the conversion performance of 35% from elementary to DUV.
The event in the 193-nm laser was shown by stages of SFG. So as to scale the DUV laser energy proficiently, a new notion of your 193-nm DUV laser generation is offered based upon the diamond Raman laser.