CLBO Crystal - An Overview
CLBO Crystal - An Overview
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Nonetheless, in an effort to process the crystal is incredibly advanced production procedures are demanded. Since the dawn of this crystal, focusing on this challenge, we at the moment are the one firm on the planet which might be processed With this crystal.
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We summarized The existing enhancement status of the superior-electric power DUV laser the two at the wavelength of FHG on the one-μm laser and at 193 nm. The modern improvement with the sound-state/fiber laser, together with the nonlinear optical crystals, prompts not just the normal ability but additionally the beam excellent (coherence) of the DUV lasers to an unprecedented degree.
The main element trouble of ultraviolet coherent light source largely concentrates 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, dimensions, problems resistance, conversion effectiveness and allowable parameter variety of nonlinear optical crystal are demanded A growing number of.
Conversely, the beam top quality of the larger ability DUV laser would turn into even worse because of additional severe thermal and nonlinear outcomes. As a result, the frequency conversion processes really should be cautiously intended to mitigate the aforementioned consequences. Thus, a higher-electricity DUV laser for the FHG of one μm with a very good beam quality could be obtained and may be effective for acquiring the shorter wavelength DUV lasers for instance 193 nm by SFG.
As a result of thermal lens impact in the good-condition lasers, In the event the heating administration is insufficient, It's not straightforward to acquire the stable-state laser that has a higher ability plus a higher beam excellent simultaneously. Not long ago, with the development of the thin disk laser and single-crystal fiber (SCF) laser, a superior-electrical power laser at the elemental wavelength (one μm) were realized with an excellent beam high-quality even with a TEM00 mode beam [4,24], which would be great candidates for the basic of your DUV laser era. One more applicant for the basic could be the superior-power fiber laser which may be realized by coherent beam blend with M2 worth under 1.
On one other facet, the ability scaling of the NIR laser is an additional factor to raise the typical power of your 193-nm DUV laser. Due to insufficient the high-electric power amplification Resolution from the NIR laser (such as at 1553 nm), nonlinear frequency processes which include optical parameter oscillation (OPO) can be applied to make a wavelength converter by shifting the wavelength from 1 μm to the desired wavelength in addition to obtaining relative greater electrical power [21]. Recently, a diamond Raman laser confirmed its capability in obtaining a substantial electrical power along with a significant conversion effectiveness for the 1st Stokes from the one-μm laser [22,23], which suggests the chance to be used within the 193-nm DUV laser technology due to its significant Raman attain and enormous frequency shift.
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