CLBO Crystal Things To Know Before You Buy
CLBO Crystal Things To Know Before You Buy
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The crucial element problem of ultraviolet coherent gentle supply mostly concentrates on the development of nonlinear optical frequency conversion crystal in ultraviolet band. The nonlinear optical crystal is probably the circumstances for frequency transformation, so The expansion, dimension, destruction resistance, conversion effectiveness and allowable parameter number of nonlinear optical crystal are necessary A growing number of.
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Both of those the 1040 nm and 1078 nm laser originate from one particular twin-wavelength Yb-doped fiber laser. Every single laser is amplified by levels of fiber amplifier and Yb-doped resources amplifier, respectively.
On one other side, the ability scaling of the NIR laser is another part to boost the ordinary ability in the 193-nm DUV laser. A result of the lack of the substantial-electric power amplification solution from the NIR laser (one example is at 1553 nm), nonlinear frequency procedures which include optical parameter oscillation (OPO) might be applied to develop a wavelength converter by shifting the wavelength from one μm to the specified wavelength as well as obtaining relative better power [21]. Just lately, a diamond Raman laser confirmed its skill in accomplishing a high energy along with a higher conversion effectiveness for the 1st Stokes of the one-μm laser [22,23], CLBO Crystal which means the chance being used during the 193-nm DUV laser technology thanks to its significant Raman get and huge frequency shift.
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The heartbeat length of the 2nd Stokes light was shortened to 5 ns as demonstrated in Determine 7a, a single-shot image through the oscilloscope, which is a common phenomenon in Raman laser [44] when the heart beat duration from the pump laser was 10 ns.
Cesium Lithium Borate (CsLiB6O10 or CLBO) is the best non-linear crystal which generates ultraviolet harmonics in the Nd:YAG essential laser wavelength. So as to boost the damage threshold, very low CLBO surface roughness, by extremely-precision machining, is needed. Since the CLBO crystal has quick hydroscopic reaction and micro scratches in machining, extremely-specific machining in the CLBO crystal is usually a challenging technological dilemma.
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The conversion efficiency from basic NIR to DUV is from 5% to 36% based on the noted brings about Desk 1. Rising the conversion efficiency will reduce the stress on the design and set up of the elemental laser amplifier in addition to the electrical electricity consumption. A fantastic beam quality of the basic laser will likely contribute towards the escalating on the conversion effectiveness together with the suitable electric power intensity in the NIR and eco-friendly laser inside the SHG and FHG method, respectively. The highest conversion efficiencies from NIR to environmentally friendly and environmentally friendly to DUV laser by utilization of CLBO crystal are 70% and close to fifty%, respectively [twelve], which corresponds for the conversion efficiency of 35% from elementary to DUV.
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