Detailed Notes on CLBO Crystal
Detailed Notes on CLBO Crystal
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In this particular paper, The brand new lapping slurry and sprucing slurry are launched. And the deliquescence degree of CLBO is fallen to lowest. A fresh Doing the job technological know-how is also adopted. Following rough sprucing, the concentration of ultra-precision sprucing slurry is amplified appropriately. So does the extremely-precision sharpening speed, and the wiping velocity is quicker compared to the deliquescence velocity. The CLBO crystal surface roughness can attain 1nm and preserve the floor high quality nicely. Obtain by way of your institution
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Based on the evidence-of-basic principle experiment, the conversion efficiency of 23% implied the possibility of attaining large-electricity at the next Stokes wavelength in the Raman laser. Should the pump laser of 1078 nm could be attained at the average power of fifty W, the output power of its 2nd Stokes wavelength at 1512 nm could be more than 10 W. The look with the Raman laser cavity need to be optimized so that you can steer clear of the problems of your M1 and diamond area.
The important thing trouble of ultraviolet coherent mild resource primarily focuses on the event of nonlinear optical frequency conversion crystal in ultraviolet band. The nonlinear optical crystal is amongst the disorders for frequency transformation, so the growth, sizing, harm resistance, conversion effectiveness and allowable parameter range of nonlinear optical crystal are essential Increasingly more.
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Because of the thermal lens impact from the sound-point out lasers, If your heating administration is inadequate, It isn't easy to acquire the stable-state laser with a significant electrical power plus a high beam high-quality concurrently. Just lately, with the event of the thin disk laser and solitary-crystal fiber (SCF) laser, a high-electric power laser at the fundamental wavelength (one μm) were realized with a very good beam high-quality Despite a TEM00 mode beam [four,24], which might be great candidates for the elemental on the DUV laser era. A further applicant for the fundamental will be the high-power fiber laser which can be realized by coherent beam mixture with M2 value less than one.
On another side, the facility scaling on the NIR laser is another component to improve the common power of your 193-nm DUV laser. Because of the deficiency of the higher-electric power amplification Remedy of the NIR laser (by way of example at 1553 nm), nonlinear frequency processes for example optical parameter oscillation (OPO) could be applied to make a wavelength converter by shifting the wavelength from one μm to the desired wavelength together with obtaining relative larger ability [21]. Not too long ago, a diamond Raman laser confirmed its ability in attaining a significant energy plus a superior conversion efficiency with the 1st Stokes of your 1-μm laser [22,23], which implies the likelihood to be applied during the 193-nm DUV laser generation as a result of CLBO Crystal its significant Raman attain and huge frequency change.
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Within the scientific and industrial programs, the beam good quality on the DUV laser is likewise a very important parameter. Particularly, the beam high quality from the DUV laser drastically impacts the laser machining final results. The beam quality of the DUV laser is decided by that of the elemental laser as well as crystal with the frequency conversion. Recently, a high-power DUV laser (>ten W) at 258 nm was claimed which has a beam excellent of M2 < one.5, which was generated by FHG of the Yb:YAG laser at 1030 nm utilizing the CLBO crystal [13]. This laser would bring about a much better laser machining result in comparison to the previous DUV lasers with larger sized M2.
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Its UV absorption edge reaches 180 nm. The successful nonlinear optical coefficient of CLBO for frequency doubling at 1064nm is about 2 times as large as that of KDP. CLBO crystals could be developed within the stoichiometric melt with reduced viscosity.
The development of the 193-nm laser was shown by stages of SFG. In order to scale the DUV laser electric power efficiently, a brand new principle from the 193-nm DUV laser technology is presented based upon the diamond Raman laser.