The smart Trick of CLBO Crystal That Nobody is Discussing
The smart Trick of CLBO Crystal That Nobody is Discussing
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All-stable-state ultraviolet lasers happen to be extensively Employed in the fields of mechanical flaw detection, lithography, micromachining and drugs for some great benefits of smaller quantity, prolonged daily life, substantial efficiency, good beam high quality, huge tuning and slender spectral line, and many others. Making use of substantial electricity around-infrared coherent light supply as the fundamental frequency supply determined by nonlinear tuning technological know-how, creating ultraviolet coherent radiation by multistage frequency conversion is regarded as a significant method to acquire the ultraviolet coherent light resource.
In comparison to BBO it capabilities larger spectral and temperature acceptance, better angle tolerance, plus a lesser wander-off angle. from 3289 $ supply
In accordance with the proof-of-basic principle experiment, the conversion efficiency of 23% implied the potential for achieving superior-electrical power at the next Stokes wavelength with the Raman laser. Should the pump laser of 1078 nm may be acquired at the normal electric power of fifty W, the output electricity of its 2nd Stokes wavelength at 1512 nm may very well be much more than ten W. The design in the Raman laser cavity must be optimized to be able to steer clear of the problems with the M1 and diamond floor.
The typical power in the NIR laser continue to has the possible to generally be enhanced to tens of watts for instance 70 W [26] If your double-move configuration could possibly be used for your Yb:YAG SCF amplifier phase. Therefore, When the conversion effectiveness of 31% from NIR to DUV can be nevertheless managed at this bigger electrical power ailment, the typical output electric power from the DUV laser at 258 nm may very well be a lot more than twenty W, which might be a remarkable electrical power level to the DUV laser and bring on the unanticipated DUV laser machining results. In addition, for prime-electrical power DUV laser, the UV injury of the nonlinear crystal, such as the windows for CLBO crystal along with the mirrors, is an additional crucial parameter for long run and stable Procedure.
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LBO is also a great nonlinear crystal which is usually placed on the SHG through the NIR to the inexperienced. The DUV laser is often realized by two stages of SFG from the LBO crystals given that there is not any phase-matching angle for LBO to transform the environmentally friendly laser at 515 nm or 532 nm to the DUV straight by SHG [16]. Recently, the NSBBF crystal has also shown its opportunity to acquire a high conversion efficiency from 532 nm to 266 nm. The wander-off angle and deff with the NSBBF are Just about just like Individuals of CLBO [17].
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The beam profile shown in Figure 7b demonstrated an excellent beam good quality as among the merits of Raman laser, which would be beneficial to produce a 193-nm DUV laser with a high quality beam.
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The development with the 193-nm laser was demonstrated by phases of SFG. In order to scale the DUV laser electric power successfully, a different principle from the 193-nm DUV laser era is introduced determined by the diamond Raman laser.