CLBO Crystal Secrets
CLBO Crystal Secrets
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All-reliable-point out ultraviolet lasers have been widely Employed in the fields of mechanical flaw detection, lithography, micromachining and drugs for some great benefits of smaller volume, lengthy existence, substantial effectiveness, excellent beam top quality, extensive tuning and slender spectral line, and many others. Making use of high ability in the vicinity of-infrared coherent gentle supply as the elemental frequency supply depending on nonlinear tuning technological innovation, building ultraviolet coherent radiation by multistage frequency conversion is thought to be a significant solution to acquire the ultraviolet coherent mild source.
When compared with BBO it capabilities bigger spectral and temperature acceptance, improved angle tolerance, as well as a smaller sized stroll-off angle. from 3289 $ shipping
We summarized The present enhancement status of your substantial-electricity DUV laser the two within the wavelength of FHG in the one-μm laser and at 193 nm. The recent progress of the sound-point out/fiber laser, along with the nonlinear optical crystals, prompts not merely the normal power but in addition the beam excellent (coherence) of the DUV lasers to an unprecedented amount.
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 also a great nonlinear crystal which is always applied to the SHG in the NIR to the green. The DUV laser is usually understood by two levels of SFG during the LBO crystals due to the fact there isn't a stage-matching angle for LBO to convert the green laser at 515 nm or 532 nm into the DUV instantly by SHG [16]. A short while ago, the NSBBF crystal has also demonstrated its possible to get a higher conversion effectiveness from 532 nm to 266 nm. The walk-off angle and deff of your NSBBF are Just about much like All those of CLBO [17].
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While in the scientific and industrial applications, the beam high quality from the DUV laser can also be an essential parameter. Particularly, the beam quality of your DUV laser considerably influences the laser machining final results. The beam top quality of the DUV laser is decided by that of the basic laser and also the crystal with the frequency conversion. Not long ago, a substantial-power DUV laser (>10 W) at 258 nm was claimed by using click here a beam quality of M2 < one.five, which was generated by FHG of a Yb:YAG laser at 1030 nm utilizing the CLBO crystal [thirteen]. This laser would produce a greater laser machining consequence compared to the former DUV lasers with much larger M2.
The pulse length of the second Stokes mild was shortened to 5 ns as proven in Figure 7a, just one-shot image through the oscilloscope, and that is a standard phenomenon in Raman laser [forty four] when the heartbeat duration from the pump laser was ten ns.
Cesium Lithium Borate (CsLiB6O10 or CLBO) is the best non-linear crystal which generates ultraviolet harmonics of the Nd:YAG basic laser wavelength. So that you can boost the problems threshold, low CLBO surface area roughness, by ultra-precision machining, is required. As the CLBO crystal has straightforward hydroscopic reaction and micro scratches in machining, ultra-exact machining on the CLBO crystal is usually a complicated technical problem.
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Its UV absorption edge reaches 180 nm. The productive nonlinear optical coefficient of CLBO for frequency doubling at 1064nm is about 2 times as huge as that of KDP. CLBO crystals is usually grown from your stoichiometric soften with decrease viscosity.
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