5 Tips about CLBO Crystal You Can Use Today
5 Tips about CLBO Crystal You Can Use Today
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In accordance with the proof-of-theory experiment, the conversion effectiveness of 23% implied the potential of obtaining superior-power at the second Stokes wavelength in the Raman laser. In the event the pump laser of 1078 nm might be obtained at the average electricity of fifty W, the output electricity of its 2nd Stokes wavelength at 1512 nm might be much more than ten W. The look in the Raman laser cavity should be optimized in order to steer clear of the injury of the M1 and diamond surface area.
The key problem of ultraviolet coherent gentle supply mostly focuses on the event of nonlinear optical frequency conversion crystal in ultraviolet band. The nonlinear optical crystal is amongst the situations for frequency transformation, so the growth, dimensions, injury resistance, conversion performance and allowable parameter choice of nonlinear optical crystal are essential more and more.
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Due to the thermal lens influence within the stable-state lasers, If your heating administration is insufficient, It is far from straightforward to get the good-state laser by using a superior electrical power and also a superior beam high quality concurrently. Not too long ago, with the development of the thin disk laser and solitary-crystal fiber (SCF) laser, a higher-electricity laser at the elemental wavelength (one μm) were understood with a good beam high-quality even with a TEM00 mode beam [four,24], which might be fantastic candidates for the basic in the DUV laser generation. Another applicant for the fundamental is the significant-electricity fiber laser which could possibly be accomplished by coherent beam mixture with M2 value a lot less than one.
On the other side, the facility scaling on the NIR laser is another component to improve the average ability on the 193-nm DUV laser. Because of the not enough the high-ability amplification Remedy of your NIR laser (as an example at 1553 nm), nonlinear frequency procedures such as optical parameter oscillation (OPO) could possibly be placed on produce a wavelength converter by shifting the wavelength from one μm to the specified wavelength and getting relative higher electrical power [21]. Just lately, a diamond Raman laser showed its potential in accomplishing a superior ability in addition to a superior conversion performance for the 1st Stokes in the 1-μm laser [22,23], which implies the chance being utilized while in the 193-nm DUV laser era due to its substantial Raman acquire and large frequency change.
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Furthermore, combining the good-state laser with other nonlinear system for example stimulated Raman scattering, NIR lasers can be attained at new wavelengths with significant power and large beam high-quality, which was tested through the proof-of-theory experiment. This Raman laser scheme offers a whole new route to the substantial-electric power DUV laser, Primarily within the wavelength of 193 nm.
The beam profile shown in Figure 7b demonstrated an excellent beam excellent as one of the merits of Raman laser, which would be advantageous to create a 193-nm DUV laser with a high quality beam.
The conversion effectiveness from basic NIR to DUV is from five% to 36% according to the claimed ends in Table one. Growing the conversion performance will reduce the stress on the design and set up of the fundamental laser amplifier together with the electric ability usage. A fantastic beam top quality of the elemental laser may also contribute on the expanding from the conversion effectiveness and also the appropriate electrical power depth of the NIR and inexperienced laser from the SHG and FHG procedure, respectively. The best conversion efficiencies from NIR to inexperienced and green to DUV laser by utilization of CLBO crystal are 70% and close to fifty%, respectively [twelve], which corresponds to the conversion effectiveness of 35% from basic to DUV.
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