Nevertheless, in order to course of action the crystal is incredibly Sophisticated producing strategies are necessary. For the reason that dawn of this crystal, focusing on this problem, we at the moment are the only enterprise on the earth that may be processed On this crystal.
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In accordance with the proof-of-theory experiment, the conversion effectiveness of 23% implied the opportunity of reaching large-electricity at the second Stokes wavelength on the Raman laser. If your pump laser of 1078 nm could be attained at the average energy of 50 W, the output power of its 2nd Stokes wavelength at 1512 nm could be greater than ten W. The look from the Raman laser cavity should be optimized in order to steer clear of the problems on the M1 and diamond surface area.
The common electrical power from the NIR laser still has the opportunity to generally be enhanced to tens of watts for example 70 W [26] In the event the double-go configuration may very well be utilized for that Yb:YAG SCF amplifier stage. As a result, In case the conversion performance of 31% from NIR to DUV may very well be even now maintained at this larger ability problem, the standard output electrical power with the DUV laser at 258 nm might be in excess of twenty W, which might be considered a extraordinary electrical power degree to the DUV laser and cause the unanticipated DUV laser machining effects. Moreover, for top-power DUV laser, the UV damage from the nonlinear crystal, including the Home windows for CLBO crystal and the mirrors, is an additional critical parameter for long run and stable Procedure.
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LBO can be a wonderful nonlinear crystal which is often placed on the SHG with the NIR into the environmentally friendly. The DUV laser is usually realized by two levels of SFG within the LBO crystals given that there is absolutely no stage-matching angle for LBO to convert the environmentally friendly laser at 515 nm or 532 nm on the DUV immediately by SHG [16]. Recently, the NSBBF crystal has also demonstrated its likely to obtain a significant conversion performance from 532 nm to 266 nm. The stroll-off angle and deff on the NSBBF are Virtually similar to All those of CLBO [17].
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Also, combining the good-state laser with other nonlinear procedure for example stimulated Raman scattering, NIR lasers can be accomplished at new wavelengths with higher electric power and significant beam excellent, which was tested from the proof-of-principle experiment. This Raman laser plan presents a completely new path to the significant-electric power DUV laser, In particular with the wavelength of 193 nm.
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Its UV absorption edge reaches 180 nm. The productive nonlinear optical coefficient of CLBO for frequency doubling at 1064nm is about twice as significant as that of KDP. CLBO crystals might be developed from your stoichiometric soften with reduced viscosity.
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