CLBO Crystal Secrets
CLBO Crystal Secrets
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All-strong-condition ultraviolet lasers happen to be broadly used in the fields of mechanical flaw detection, lithography, micromachining and medication for the advantages of small quantity, prolonged existence, superior efficiency, very good beam quality, extensive tuning and slender spectral line, and many others. Using significant energy close to-infrared coherent light-weight source as the basic frequency source according to nonlinear tuning technological know-how, producing ultraviolet coherent radiation by multistage frequency conversion is considered a vital way to build the ultraviolet coherent light-weight supply.
When compared to BBO it attributes larger spectral and temperature acceptance, superior angle tolerance, as well as a lesser walk-off angle. from 3289 $ supply
In accordance with the proof-of-theory experiment, the conversion performance of 23% implied the possibility of achieving large-ability at the second Stokes wavelength from the Raman laser. When the pump laser of 1078 nm might be obtained at the typical electric power of 50 W, the output electrical power of its 2nd Stokes wavelength at 1512 nm can be more than ten W. The look on the Raman laser cavity needs to be optimized in an effort to steer clear of the hurt of the M1 and diamond area.
全固态紫外激光器以其体积小、寿命长、效率高、光束质量好、调谐范围宽、谱线窄等优点，广泛应用于机械探伤、光刻、微加工和医学等领域，等，利用大功率近红外相干光源作为基于非线性调谐技术的基频源，通过多级变频产生紫外相干辐射被认为是发展紫外相干光源的重要途径。紫外相干光源的关键问题是研制紫外波段的非线性光学变频晶体。非线性光学晶体是实现频率变换的条件之一，因此对非线性光学晶体的生长、尺寸、损伤电阻、转换效率和允许的参数范围提出了越来越高的要求。
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LBO is additionally a superb nonlinear crystal which is often placed on the SHG through the NIR to the inexperienced. The DUV laser is usually understood by two phases of SFG from the LBO crystals since there is absolutely no phase-matching angle for LBO to transform the inexperienced laser at 515 nm or 532 nm towards the DUV immediately by SHG [16]. Lately, the NSBBF crystal has also demonstrated its potential to get a higher conversion efficiency from 532 nm to 266 nm. The wander-off angle and deff in the NSBBF are almost just like those of CLBO [seventeen].
On another facet, the power scaling of your NIR laser is another component to boost the typical power on the 193-nm DUV laser. Due to the not enough the high-electric power amplification Answer of your NIR laser (for example at 1553 nm), nonlinear frequency procedures including optical parameter oscillation (OPO) could possibly be applied to develop a wavelength converter by shifting the wavelength from one μm to the specified wavelength together with getting relative better ability [21]. A short while ago, a diamond Raman laser confirmed its capacity in reaching a higher energy and a superior conversion effectiveness in the 1st Stokes on the one-μm laser [22,23], which suggests the possibility to be utilized inside the 193-nm DUV laser technology on account of its superior Raman gain and huge frequency change.
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In the scientific and industrial programs, the beam top quality of the DUV laser is additionally a crucial parameter. Particularly, the beam excellent from the DUV laser dramatically influences the laser machining effects. The beam high-quality from the DUV laser is determined by that of the fundamental laser along with the crystal with the frequency conversion. A short while ago, a superior-ability DUV laser (>10 W) at 258 nm was noted having a beam high-quality of M2 < one.5, which was generated by FHG of the Yb:YAG laser at 1030 nm using the CLBO crystal [thirteen]. This laser would produce an improved laser machining outcome when compared to the preceding DUV lasers with greater M2.
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Furthermore, combining the stable-point out laser with other nonlinear procedure for instance stimulated Raman scattering, NIR lasers could possibly be achieved at new wavelengths with high electrical power more info and superior beam high-quality, which was tested because of the proof-of-principle experiment. This Raman laser scheme supplies a different route to the substantial-electric power DUV laser, Primarily at the wavelength of 193 nm.
Tunable ultraviolet laser supply dependant on good-condition dye laser technological know-how and CsLiB6O10 harmonic generation
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