The smart Trick of CLBO Crystal That Nobody is Discussing
The smart Trick of CLBO Crystal That Nobody is Discussing
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Nonetheless, to be able to process the crystal may be very Superior production strategies are demanded. For the reason that dawn of the crystal, working on this problem, we at the moment are the only firm in the world which might be processed On this crystal.
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We summarized the current development status of the significant-electricity DUV laser each for the wavelength of FHG in the one-μm laser and at 193 nm. The current enhancement from the good-state/fiber laser, in addition to the nonlinear optical crystals, prompts not only the common power but in addition the beam top quality (coherence) with the DUV lasers to an unparalleled amount.
The key issue of ultraviolet coherent mild source mostly focuses on the development of nonlinear optical frequency conversion crystal in ultraviolet band. The nonlinear optical crystal is probably the ailments for frequency transformation, so The expansion, measurement, hurt resistance, conversion effectiveness and allowable parameter variety of nonlinear optical crystal are essential A lot more.
On the flip side, the beam high quality of this increased electric power DUV laser would come to be even worse resulting from extra serious thermal and nonlinear consequences. Hence, the frequency conversion procedures need to be very carefully intended to mitigate the aforementioned outcomes. Hence, a large-energy DUV laser at the FHG of one μm with a superb beam top quality could be received and will be effective for acquiring the shorter wavelength DUV lasers such as 193 nm by SFG.
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On one other aspect, the ability scaling on the NIR laser is another aspect to enhance the normal electrical power of the 193-nm DUV laser. Mainly because of the deficiency of the high-electric power amplification Remedy on the NIR laser (for instance at 1553 nm), nonlinear frequency procedures such as optical parameter oscillation (OPO) can be applied to make a wavelength converter by shifting the wavelength from one μm to the specified wavelength in addition to acquiring relative bigger energy [21]. Just lately, a diamond Raman laser confirmed its means in reaching a superior power as well as a large conversion effectiveness for the 1st Stokes of your one-μm laser [22,23], which suggests the likelihood to get utilized inside the 193-nm DUV laser generation as a result of its higher Raman acquire and enormous frequency change.
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Also, combining the good-state laser with other nonlinear course of action like stimulated Raman scattering, NIR lasers may be obtained at new wavelengths with higher electricity and superior beam quality, which was tested from the evidence-of-principle experiment. This Raman laser plan provides a brand new route to the substantial-electric power DUV laser, In particular within the wavelength of 193 nm.
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Its UV absorption edge reaches 180 nm. The effective nonlinear optical coefficient of CLBO for frequency doubling at 1064nm is about two times as big as that of KDP. CLBO crystals is often grown with the stoichiometric melt with decreased viscosity.
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