On this paper, The brand new lapping slurry and polishing slurry are released. As well as the deliquescence diploma of CLBO is fallen to lowest. A fresh Performing technologies can be adopted. Immediately after tough sprucing, the focus of extremely-precision sprucing slurry is amplified thoroughly. So does the extremely-precision sprucing pace, along with the wiping pace is faster compared to the deliquescence velocity. The CLBO crystal surface roughness can obtain 1nm and continue to keep the surface area high-quality properly. Entry by way of your establishment
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Based on the proof-of-theory experiment, the conversion performance of 23% implied the opportunity of reaching substantial-energy at the 2nd Stokes wavelength on the Raman laser. If the pump laser of 1078 nm could possibly be obtained at the typical electrical power of 50 W, the output energy of its 2nd Stokes wavelength at 1512 nm might be over 10 W. The design on the Raman laser cavity ought to be optimized in order to steer clear of the problems in the M1 and diamond surface.
The crucial element problem of ultraviolet coherent light source generally focuses on the development of nonlinear optical frequency conversion crystal in ultraviolet band. The nonlinear optical crystal has become the ailments for frequency transformation, so The expansion, dimensions, problems resistance, conversion effectiveness and allowable parameter variety of nonlinear optical crystal are necessary An increasing number of.
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Because of the thermal lens effect during the stable-state lasers, if the heating administration is inadequate, It's not at all simple to acquire the sound-point out laser by using a higher ability and a large beam quality concurrently. Not long ago, with the development of the thin disk laser and one-crystal fiber (SCF) laser, a higher-electricity laser at the elemental wavelength (one μm) had been realized with an excellent beam excellent check here Despite having a TEM00 manner beam [four,24], which might be good candidates for the fundamental with the DUV laser technology. Another candidate for the elemental is the high-power fiber laser which might be accomplished by coherent beam combination with M2 benefit fewer than one.
On another side, the ability scaling on the NIR laser is an additional component to improve the typical electricity of the 193-nm DUV laser. A result of the insufficient the high-ability amplification Resolution of the NIR laser (such as at 1553 nm), nonlinear frequency processes including optical parameter oscillation (OPO) may be applied to develop a wavelength converter by shifting the wavelength from one μm to the specified wavelength along with acquiring relative bigger electrical power [21]. Not long ago, a diamond Raman laser confirmed its means in reaching a large electric power in addition to a large conversion performance within the 1st Stokes of the one-μm laser [22,23], which means the chance to generally be used during the 193-nm DUV laser technology as a consequence of its superior Raman attain and huge frequency shift.
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The beam profile shown in Figure 7b demonstrated an excellent beam excellent as one of the merits of Raman laser, which might be beneficial to deliver a 193-nm DUV laser with a top quality beam.
Its UV absorption edge reaches a hundred and eighty nm. The helpful 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 from the stoichiometric melt with lower viscosity.
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