CLBO Crystal - An Overview
CLBO Crystal - An Overview
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All-stable-condition ultraviolet lasers have already been commonly Utilized in the fields of mechanical flaw detection, lithography, micromachining and drugs for some great benefits of tiny quantity, lengthy lifetime, higher performance, very good beam excellent, wide tuning and narrow spectral line, and many others. Utilizing high electricity close to-infrared coherent light-weight source as the basic frequency resource based on nonlinear tuning engineering, producing ultraviolet coherent radiation by multistage frequency conversion is viewed as a significant method to create the ultraviolet coherent light resource.
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Based on the proof-of-theory experiment, the conversion effectiveness of 23% implied the potential of attaining substantial-electrical power at the next Stokes wavelength in the Raman laser. When the pump laser of 1078 nm could be received at the typical ability of 50 W, the output ability of its 2nd Stokes wavelength at 1512 nm may be greater than ten W. The look on the Raman laser cavity ought to be optimized so as to steer clear of the injury of the M1 and diamond floor.
The typical electric power from the NIR laser however has the potential to become enhanced to tens of watts such as 70 W [26] In the event the double-go configuration may be used to the Yb:YAG SCF amplifier phase. As a result, In the event the conversion performance of 31% from NIR to DUV could be still taken care of at this better power situation, the typical output electrical power in the DUV laser at 258 nm may be a lot more than 20 W, which would certainly be a outstanding energy level with the DUV laser and cause the unanticipated DUV laser machining effects. Additionally, for top-electric power DUV laser, the UV problems on the nonlinear crystal, including the Home windows for CLBO crystal plus the mirrors, is yet another important parameter for long term and stable operation.
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LBO is likewise an outstanding nonlinear crystal which is always applied to the SHG through the NIR to the environmentally friendly. The DUV laser is frequently recognized by two levels of SFG from the LBO crystals given that there is absolutely no phase-matching angle for LBO to transform the green laser at 515 nm or 532 nm for the DUV straight by SHG [16]. Recently, the NSBBF crystal has also revealed its potential to acquire a high conversion efficiency from 532 nm to 266 nm. The walk-off angle and deff of the NSBBF are Just about similar to Those people of CLBO [seventeen].
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Tunable ultraviolet laser supply dependant on sound-point out dye laser technology and CsLiB6O10 harmonic era
Its UV absorption edge reaches 180 nm. The efficient nonlinear optical coefficient of CLBO for frequency doubling at 1064nm is about two times as massive as that of KDP. CLBO crystals is often developed within the stoichiometric soften with lessen viscosity.
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