The 2-Minute Rule for CLBO Crystal
The 2-Minute Rule for CLBO Crystal
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As compared to BBO it characteristics larger sized spectral and temperature acceptance, much better angle tolerance, along with a scaled-down wander-off angle. from 3289 $ supply
We summarized The present enhancement standing of the substantial-electricity DUV laser both of those in the wavelength of FHG of your 1-μm laser and at 193 nm. The the latest advancement on the solid-point out/fiber laser, together with the nonlinear optical crystals, prompts not simply the normal power but additionally the beam top quality (coherence) from the DUV lasers to an unprecedented degree.
By way of example, the current concave OC could be replaced by a airplane mirror which could mitigate the ability density on the floor of M1 and also the diamond. In addition, using substantial damage threshold coatings for M1 and diamond would also Enhance the output electricity without any damages. Then, the NIR laser within the 2nd Stokes wavelength could be high plenty of, along with its excellent beam good quality, to crank out the final DUV laser at 193 nm that has a higher normal energy.
Conversely, the beam top quality of the higher electric power DUV laser would come to be worse as a consequence of more serious thermal and nonlinear consequences. That's why, the frequency conversion procedures really should be thoroughly created to mitigate the aforementioned results. As a result, a significant-ability DUV laser for the FHG of one μm with a fantastic beam high quality may be attained and may be effective for getting the shorter wavelength DUV lasers such as 193 nm by CLBO Crystal SFG.
As a result of thermal lens effect in the stable-point out lasers, When the heating management is insufficient, It's not effortless to get the good-point out laser by using a significant energy and also a significant beam high quality concurrently. Not too long ago, with the event of the thin disk laser and single-crystal fiber (SCF) laser, a large-ability laser at the fundamental wavelength (1 μm) had been understood with a good beam high-quality Despite having a TEM00 mode beam [four,24], which would be fantastic candidates for the basic from the DUV laser era. An additional prospect for the elemental would be the significant-power fiber laser which can be obtained by coherent beam blend with M2 benefit under 1.
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The conversion effectiveness from essential NIR to DUV is from 5% to 36% in accordance with the documented brings about Desk one. Rising the conversion effectiveness will decrease the burden on the look and setup of the fundamental laser amplifier as well as the electrical energy use. An excellent beam high-quality of the basic laser will also add to the increasing with the conversion effectiveness and the suitable electric power depth from the NIR and environmentally friendly laser inside the SHG and FHG process, respectively. The very best conversion efficiencies from NIR to eco-friendly and green to DUV laser by utilization of CLBO crystal are 70% and all-around 50%, respectively [12], which corresponds to your conversion effectiveness of 35% from fundamental to DUV.
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