The Definitive Guide to CLBO Crystal
The Definitive Guide to CLBO Crystal
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All-stable-point out ultraviolet lasers are actually widely used in the fields of mechanical flaw detection, lithography, micromachining and medication for the advantages of smaller quantity, very long lifetime, substantial efficiency, superior beam excellent, broad tuning and slender spectral line, etc. Using superior electrical power around-infrared coherent mild resource as the basic frequency source determined by nonlinear tuning technological innovation, generating ultraviolet coherent radiation by multistage frequency conversion is considered a crucial method to build the ultraviolet coherent light supply.
When compared with BBO it attributes bigger spectral and temperature acceptance, much better angle tolerance, along with a scaled-down stroll-off angle. from 3289 $ delivery
In accordance with the evidence-of-basic principle experiment, the conversion effectiveness of 23% implied the potential for accomplishing substantial-electricity at the next Stokes wavelength of the Raman laser. If the pump laser of 1078 nm can be acquired at the typical ability of 50 W, the output electrical power of its 2nd Stokes wavelength at 1512 nm could be much more than ten W. The design of the Raman laser cavity need to be optimized so as to avoid the problems in the M1 and diamond area.
By way of example, The present concave OC could be replaced by a aircraft mirror which could mitigate the power density on the area of M1 as well as diamond. Furthermore, using superior problems threshold coatings for M1 and diamond would also improve the output electricity without any damages. Then, the NIR laser with the 2nd Stokes wavelength might be higher adequate, together with its superior beam high-quality, to create the final DUV laser at 193 nm which has a high normal electrical power.
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On the other side, the facility scaling with the NIR laser is an additional element to increase the normal electricity of your 193-nm DUV laser. Mainly because of the deficiency of the large-electricity amplification Answer in the NIR laser (as an example at 1553 nm), nonlinear frequency procedures including optical parameter oscillation (OPO) could be placed on build a wavelength converter by shifting the wavelength from 1 μm to the specified wavelength and obtaining relative higher electricity [21]. A short while ago, a diamond Raman laser confirmed its capability in attaining a significant power as well as a substantial conversion effectiveness for the 1st Stokes of your one-μm laser [22,23], which means the likelihood to get used in the 193-nm DUV laser generation due to its large Raman achieve and large frequency change.
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The beam profile demonstrated in Figure 7b demonstrated an excellent beam top quality as one of several merits of Raman laser, which would be advantageous to produce a 193-nm DUV laser with a high quality beam.
Its UV absorption edge reaches a hundred and eighty nm. The powerful nonlinear optical coefficient of CLBO for frequency doubling at 1064nm is about twice as substantial as that of KDP. CLBO crystals may be developed in the stoichiometric soften with lower viscosity.
The event of the 193-nm laser was demonstrated by phases of SFG. So that you can scale the DUV laser electrical power proficiently, a new notion with the 193-nm DUV laser technology is introduced dependant on the diamond Raman laser.