A Review Of CLBO Crystal
A Review Of CLBO Crystal
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During this paper, The brand new lapping slurry and sprucing slurry are introduced. Plus the deliquescence diploma of CLBO is fallen to most affordable. A new Doing work technologies is likewise adopted. Following rough sprucing, the focus of extremely-precision sprucing slurry is amplified properly. So does the extremely-precision sharpening speed, as well as the wiping speed is quicker compared to deliquescence pace. The CLBO crystal surface area roughness can obtain 1nm and retain the floor excellent effectively. Accessibility by means of your institution
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In accordance with the evidence-of-theory experiment, the conversion performance of 23% implied the possibility of obtaining substantial-power at the second Stokes wavelength on the Raman laser. Should the pump laser of 1078 nm might be acquired at the typical ability of 50 W, the output electricity of its 2nd Stokes wavelength at 1512 nm could possibly be a lot more than ten W. The design of the Raman laser cavity should be optimized in order to stay away from the damage with the M1 and diamond area.
The common electrical power from the NIR laser still has the possible to be enhanced to tens of watts including 70 W [26] if the double-move configuration could possibly be utilized for the Yb:YAG SCF amplifier phase. Therefore, Should the conversion effectiveness of 31% from NIR to DUV could possibly be even now maintained at this better electrical power situation, the normal output power with the DUV laser at 258 nm might be much more than 20 W, which would become a amazing energy degree to the DUV laser and cause the unanticipated DUV laser machining effects. In addition, for prime-electricity DUV laser, the UV hurt on the nonlinear crystal, including the windows for CLBO crystal and also the mirrors, is yet another essential parameter for long lasting and steady operation.
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Because of the thermal lens effect in the reliable-condition lasers, In the event the heating management is inadequate, It's not easy to get the strong-condition laser having a significant electrical power and a substantial beam quality simultaneously. Just lately, with the event of the thin disk laser and single-crystal fiber (SCF) laser, a substantial-power laser at the fundamental wavelength (1 μm) had been recognized with a superb beam high-quality Despite a TEM00 manner beam [four,24], which would be fantastic candidates for the elemental from the DUV laser era. A different prospect for the elemental is definitely the superior-power fiber laser which could be achieved by coherent beam combination with M2 worth less than 1.
On one other aspect, the facility scaling of your NIR laser is an additional facet to boost the typical electricity from the 193-nm DUV laser. Mainly because of the insufficient the large-electrical power amplification Option with the NIR laser (one example is at 1553 nm), nonlinear frequency processes which include optical parameter oscillation (OPO) may very well be applied to produce a wavelength converter by shifting the wavelength from 1 μm to the specified wavelength along with acquiring relative bigger electrical power [21]. Not long ago, a diamond Raman laser showed its means in reaching a large ability along with a high conversion performance in the 1st Stokes from the 1-μm laser [22,23], which implies the possibility to become utilized while in the 193-nm DUV laser era as a consequence of its superior Raman acquire and large frequency shift.
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What's more, combining the reliable-state laser with other nonlinear approach like stimulated Raman scattering, NIR lasers can be reached at new wavelengths with high electricity and high beam top quality, which was examined click here by the proof-of-principle experiment. This Raman laser scheme gives a different path to the superior-power DUV laser, Specifically with the wavelength of 193 nm.
Tunable ultraviolet laser supply determined by reliable-condition dye laser know-how and CsLiB6O10 harmonic era
Its UV absorption edge reaches 180 nm. The effective nonlinear optical coefficient of CLBO for frequency doubling at 1064nm is about 2 times as massive as that of KDP. CLBO crystals could be developed through the stoichiometric melt with lessen viscosity.
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