CLBO Crystal Fundamentals Explained
CLBO Crystal Fundamentals Explained
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According to the proof-of-theory experiment, the conversion effectiveness of 23% implied the potential of obtaining superior-energy at the second Stokes wavelength in the Raman laser. In the event the pump laser of 1078 nm may be acquired at the common electricity of 50 W, the output electric power of its 2nd Stokes wavelength at 1512 nm may very well be much more than ten W. The design of your Raman laser cavity need to be optimized so that you can steer clear of the problems with the M1 and diamond floor.
The important thing issue of ultraviolet coherent gentle source largely concentrates on the event of nonlinear optical frequency conversion crystal in ultraviolet band. The nonlinear optical crystal is amongst the conditions for frequency transformation, so the growth, dimension, destruction resistance, conversion effectiveness and allowable parameter selection of nonlinear optical crystal are demanded A growing number of.
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LBO can be an excellent nonlinear crystal which is often placed on the SHG from your NIR into the eco-friendly. The DUV laser will likely be understood by two stages of SFG inside the LBO crystals due to the fact there isn't any stage-matching angle for LBO to transform the environmentally friendly laser at 515 nm or 532 nm into the DUV instantly by SHG [sixteen]. Recently, the NSBBF crystal has also shown its likely to get a substantial conversion effectiveness from 532 nm to 266 nm. The walk-off angle and deff from the NSBBF are Nearly similar to those of CLBO [seventeen].
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Tunable ultraviolet laser source based on reliable-condition dye laser know-how and CsLiB6O10 harmonic era
The conversion efficiency from elementary NIR to DUV is from 5% to 36% in accordance with the noted brings about Table 1. Increasing the conversion effectiveness will lessen the load on the look and setup of the basic laser amplifier in addition to the electric powered electrical power use. A great beam quality of the basic laser can even add towards the rising of your conversion efficiency along with the suitable electric power depth of your NIR and green laser within the SHG and FHG approach, respectively. The very best conversion efficiencies from NIR to eco-friendly and environmentally friendly to DUV laser by use of CLBO crystal are 70% and about 50%, respectively [twelve], which corresponds to your conversion effectiveness of 35% from elementary to DUV.
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