5 Essential Elements For CLBO Crystal
5 Essential Elements For CLBO Crystal
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Based on the proof-of-basic principle experiment, the conversion performance of 23% implied the potential for obtaining substantial-electricity at the second Stokes wavelength with the Raman laser. If your pump laser of 1078 nm may be acquired at the typical energy of fifty W, the output electricity of its 2nd Stokes wavelength at 1512 nm could possibly be over 10 W. The look in the Raman laser cavity ought to be optimized so that you can avoid the problems in the M1 and diamond floor.
The crucial element dilemma of ultraviolet coherent light-weight supply primarily concentrates on the development of nonlinear optical frequency conversion crystal in ultraviolet band. The nonlinear optical crystal is among the situations for frequency transformation, so The expansion, measurement, injury resistance, conversion efficiency and allowable parameter number of nonlinear optical crystal are expected A lot more.
On the flip side, the beam top quality of the increased energy DUV laser would turn into worse on account of additional really serious thermal and nonlinear outcomes. For this reason, the frequency conversion procedures needs to be meticulously designed to mitigate the aforementioned results. As a result, a significant-ability DUV laser in the FHG of one μm with a good beam top quality may be received and may be effective for getting the shorter wavelength DUV lasers which include 193 nm by SFG.
Mainly because of the thermal lens outcome during the stable-condition lasers, In the event the heating management is inadequate, it is not straightforward to obtain the solid-point out laser by using a high electric power as well as a superior beam good quality at the same time. Not too long ago, with the event of The skinny disk laser and single-crystal fiber (SCF) laser, a higher-electric power laser at the fundamental wavelength (1 μm) had been recognized with a fantastic beam high quality Despite a TEM00 mode beam [4,24], which would be fantastic candidates for the fundamental in the DUV laser era. A different prospect for the fundamental would be the significant-power fiber laser which might be realized by coherent beam combination with M2 benefit fewer than one.
On the opposite aspect, the power scaling of the NIR laser is yet another aspect to enhance the normal electricity in the 193-nm DUV laser. Because of the not enough the substantial-energy amplification Alternative on the NIR laser (by way of example at 1553 nm), nonlinear frequency processes which include optical parameter oscillation (OPO) may very well be applied to produce a wavelength converter by shifting the wavelength from one μm to the desired wavelength as well as obtaining relative increased electric power [21]. Not long ago, a diamond Raman laser confirmed its means in attaining a large energy as well as a significant conversion effectiveness within the 1st Stokes from the one-μm laser [22,23], which implies the possibility for being applied inside the 193-nm DUV laser generation because of its substantial Raman attain and huge frequency change.
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Additionally, combining the solid-condition laser with other nonlinear system for example stimulated Raman scattering, NIR lasers could be reached at new wavelengths with high electric power and significant beam excellent, which was analyzed via the proof-of-basic principle experiment. This Raman laser plan offers a whole new path to the large-electric power DUV laser, Particularly on the wavelength of 193 nm.
Tunable ultraviolet laser resource dependant on strong-point out dye laser technology and CsLiB6O10 harmonic technology
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