CLBO Crystal Can Be Fun For Anyone
CLBO Crystal Can Be Fun For Anyone
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However, so as to method the crystal may be very State-of-the-art producing tactics are expected. Since the dawn of this crystal, working on this obstacle, we at the moment are the one enterprise on the planet which can be processed In this particular crystal.
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According to the proof-of-theory experiment, the conversion performance of 23% implied the possibility of attaining significant-ability at the 2nd Stokes wavelength of the Raman laser. When the pump laser of 1078 nm could possibly be acquired at the standard electrical power of 50 W, the output electrical power of its 2nd Stokes wavelength at 1512 nm could possibly be a lot more than 10 W. The look with the Raman laser cavity really should be optimized in an effort to avoid the destruction with the M1 and diamond surface.
The important thing challenge of ultraviolet coherent light-weight resource predominantly concentrates on the event of nonlinear optical frequency conversion crystal in ultraviolet band. The nonlinear optical crystal is one of the conditions for frequency transformation, so The expansion, sizing, damage resistance, conversion efficiency and allowable parameter selection of nonlinear optical crystal are expected more and more.
Alternatively, the beam high-quality of this better energy DUV laser would develop into worse on account of extra critical thermal and nonlinear effects. Consequently, the frequency conversion procedures need to be carefully built to mitigate the aforementioned outcomes. So, a high-energy DUV laser on the FHG of 1 μm with a great beam excellent could be attained and may be valuable for acquiring the shorter wavelength DUV lasers including 193 nm by SFG.
Due to the thermal lens outcome from the reliable-state lasers, Should the heating administration is insufficient, It isn't quick to get the good-point out laser by using a higher electric power as well as a superior beam high quality concurrently. Lately, with the get more info development of The skinny disk laser and single-crystal fiber (SCF) laser, a substantial-power laser at the fundamental wavelength (1 μm) were realized with a fantastic beam quality even with a TEM00 mode beam [4,24], which would be great candidates for the basic in the DUV laser era. One more applicant for the basic would be the substantial-electric power fiber laser which might be achieved by coherent beam blend with M2 benefit under one.
On one other aspect, the facility scaling of the NIR laser is yet another aspect to improve the normal electricity on the 193-nm DUV laser. Because of the deficiency of the large-ability amplification solution of the NIR laser (such as at 1553 nm), nonlinear frequency procedures for instance optical parameter oscillation (OPO) might be applied to make a wavelength converter by shifting the wavelength from 1 μm to the desired wavelength together with acquiring relative better power [21]. Not too long ago, a diamond Raman laser showed its capacity in attaining a substantial electricity and also a substantial conversion effectiveness on the 1st Stokes from the one-μm laser [22,23], which means the likelihood to get utilized within the 193-nm DUV laser technology as a consequence of its substantial Raman acquire and enormous frequency shift.
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During the scientific and industrial purposes, the beam good quality on the DUV laser can also be a significant parameter. Specially, the beam excellent on the DUV laser drastically affects the laser machining success. The beam excellent in the DUV laser is decided by that of the basic laser and also the crystal with the frequency conversion. Just lately, a high-electric power DUV laser (>10 W) at 258 nm was noted that has a beam top quality of M2 < one.five, which was created by FHG of a Yb:YAG laser at 1030 nm using the CLBO crystal [thirteen]. This laser would produce a much better laser machining consequence in comparison to the preceding DUV lasers with larger sized M2.
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Tunable ultraviolet laser supply according to strong-point out dye laser technology and CsLiB6O10 harmonic technology
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