CLBO Crystal Things To Know Before You Buy
CLBO Crystal Things To Know Before You Buy
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According to the proof-of-theory experiment, the conversion effectiveness of 23% implied the opportunity of reaching large-electrical power at the next Stokes wavelength with the Raman laser. In the event the pump laser of 1078 nm may be attained at the standard ability of fifty W, the output electric power of its 2nd Stokes wavelength at 1512 nm can be more than ten W. The design from the Raman laser cavity must be optimized in order to steer clear of the problems of the M1 and diamond surface.
The common power with the NIR laser nonetheless has the possible being enhanced to tens of watts like 70 W [26] In case the double-go configuration could possibly be used with the Yb:YAG SCF amplifier phase. Hence, In the event the conversion effectiveness of 31% from NIR to DUV may very well be nonetheless taken care of at this increased electric power issue, the standard output ability of the DUV laser at 258 nm could be greater than 20 W, which might be described as a amazing ability amount for your DUV laser and cause the unanticipated DUV laser machining benefits. In addition, for high-electric power DUV laser, the UV hurt from the nonlinear crystal, such as the windows for CLBO crystal and the mirrors, is an additional essential parameter for long-term and secure operation.
On the flip side, the beam top quality of the greater electric power DUV laser would turn out to be worse as a consequence of a lot more really serious thermal and nonlinear effects. Consequently, the frequency conversion procedures really should be meticulously created to mitigate the aforementioned effects. As a result, a significant-ability DUV laser at the FHG of 1 μm with a good beam high quality could possibly be acquired and will be advantageous for obtaining the shorter wavelength DUV lasers such as 193 nm by SFG.
Due to thermal lens influence inside the strong-point out lasers, If your heating management is inadequate, It's not at all effortless to get the solid-state laser that has a significant electrical power and a substantial beam high quality concurrently. Recently, with the development of The skinny disk laser and one-crystal fiber (SCF) laser, a high-ability laser at the elemental wavelength (1 μm) had been realized with a superb beam high-quality even with a TEM00 mode beam [4,24], which would be very good candidates for the basic with the DUV laser technology. Another candidate for the fundamental may be the large-electrical power fiber laser which could be obtained by coherent beam combination with M2 worth below 1.
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The pulse period of the second Stokes light-weight was shortened to 5 ns as revealed in Figure 7a, just one-shot picture within the oscilloscope, which can be a common phenomenon in Raman laser [44] although the heart beat length on the pump laser was ten ns.
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Tunable ultraviolet laser supply based upon stable-point out dye laser technology and CsLiB6O10 harmonic era
The conversion performance from essential NIR to DUV is from five% to 36% in accordance with the reported leads to Desk 1. Rising the conversion efficiency will decrease the burden on the look and set up of the basic laser amplifier plus the electrical electrical power consumption. A great beam top quality of the fundamental laser may also add into the increasing of your conversion more info effectiveness together with the right ability depth of your NIR and eco-friendly laser in the SHG and FHG system, respectively. The highest conversion efficiencies from NIR to eco-friendly and green to DUV laser by usage of CLBO crystal are 70% and about fifty%, respectively [twelve], which corresponds to your conversion effectiveness of 35% from basic to DUV.
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