CLBO Crystal Things To Know Before You Buy
CLBO Crystal Things To Know Before You Buy
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We summarized The present progress status of the high-power DUV laser both within the wavelength of FHG of your 1-μm laser and at 193 nm. The the latest enhancement with the reliable-state/fiber laser, and also the nonlinear optical crystals, prompts not simply the common electrical power but additionally the beam quality (coherence) of the DUV lasers to an unparalleled level.
For illustration, The existing concave OC could get replaced by a airplane mirror which could mitigate the facility density within the floor of M1 as well as diamond. What's more, using substantial problems threshold coatings for M1 and diamond would also Enhance the output electric power with no damages. Then, the NIR laser for the 2nd Stokes wavelength may very well be large sufficient, as well as its superior beam excellent, to produce the ultimate DUV laser at 193 nm having a large typical energy.
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Due to thermal lens outcome in the strong-state lasers, In the event the heating management is insufficient, It is far from effortless to obtain the reliable-state laser having a high power in addition to a large beam quality concurrently. Not too long ago, with the event of the thin disk laser and solitary-crystal fiber (SCF) laser, a high-electrical power laser at the basic wavelength (1 μm) were recognized with a great beam high-quality Despite a TEM00 manner beam [4,24], which would be fantastic candidates for the elemental in the DUV laser generation. A different prospect for the elemental could be the large-electric power fiber laser which may be reached by coherent beam mix with M2 price lower than 1.
On one other side, the facility scaling of your NIR laser is yet another facet to improve the regular power of the 193-nm DUV laser. Due to not enough the substantial-ability amplification Option from the NIR laser click here (as an example at 1553 nm), nonlinear frequency processes for instance optical parameter oscillation (OPO) may be placed on make a wavelength converter by shifting the wavelength from 1 μm to the desired wavelength and also obtaining relative better electric power [21]. A short while ago, a diamond Raman laser confirmed its means in accomplishing a superior electric power and a significant conversion effectiveness on the 1st Stokes in the one-μm laser [22,23], which suggests the chance to get applied from the 193-nm DUV laser era as a result of its large Raman obtain and huge frequency shift.
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The beam profile shown in Determine 7b shown a great beam good quality as one of many merits of Raman laser, which might be useful to create a 193-nm DUV laser with a high quality beam.
Its UV absorption edge reaches one hundred eighty nm. The successful nonlinear optical coefficient of CLBO for frequency doubling at 1064nm is about twice as large as that of KDP. CLBO crystals is usually developed from your stoichiometric soften with decrease viscosity.
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