Detailed Notes on CLBO Crystal
Detailed Notes on CLBO Crystal
Blog Article
Within this paper, the new lapping slurry and polishing slurry are introduced. Plus the deliquescence diploma of CLBO is fallen to lowest. A fresh Performing technology is additionally adopted. Following tough polishing, the focus of extremely-precision polishing slurry is improved appropriately. So does the extremely-precision sprucing velocity, along with the wiping speed is quicker as opposed to deliquescence velocity. The CLBO crystal floor roughness can accomplish 1nm and hold the area high quality effectively. Access through your establishment
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The common electricity in the NIR laser however has the probable to become improved to tens of watts which include 70 W [26] If your double-move configuration can be utilized for the Yb:YAG SCF amplifier phase. That's why, In the event the conversion performance of 31% from NIR to DUV could possibly be still taken care of at this better energy affliction, the average output electric power from the DUV laser at 258 nm may be more than 20 W, which would become a exceptional power level for your DUV laser and bring on the unanticipated DUV laser machining success. Furthermore, for top-electrical power DUV laser, the UV hurt of your nonlinear crystal, including the windows for CLBO crystal and also the mirrors, is yet another critical parameter for long term and stable operation.
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Each the 1040 nm and 1078 nm laser originate from one particular twin-wavelength Yb-doped fiber laser. Each laser is amplified by levels of fiber amplifier and Yb-doped materials amplifier, respectively.
On the other facet, the facility scaling on the NIR laser is an additional facet to boost the typical electric power in the 193-nm DUV laser. Because of the insufficient the higher-power amplification Option in the NIR laser (such as at 1553 nm), nonlinear frequency processes for instance optical parameter oscillation (OPO) might be placed on establish a wavelength converter by shifting the wavelength from 1 μm to the desired wavelength and obtaining relative increased electric power [21]. A short while ago, a diamond Raman laser confirmed its capacity in achieving a substantial ability click here along with a substantial conversion performance on the 1st Stokes of your one-μm laser [22,23], which means the chance being utilized while in the 193-nm DUV laser technology because of its large Raman obtain and huge frequency shift.
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While in the scientific and industrial programs, the beam high quality of the DUV laser is also a very important parameter. Specially, the beam top quality of the DUV laser considerably impacts the laser machining success. The beam top quality of the DUV laser is set by that of the basic laser along with the crystal with the frequency conversion. Not too long ago, a significant-power DUV laser (>10 W) at 258 nm was documented that has a beam high-quality of M2 < one.five, which was created by FHG of the Yb:YAG laser at 1030 nm utilizing the CLBO crystal [thirteen]. This laser would produce a better laser machining consequence compared to the past DUV lasers with larger sized M2.
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