The smart Trick of CLBO Crystal That No One is Discussing
The smart Trick of CLBO Crystal That No One is Discussing
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In this paper, The brand new lapping slurry and sprucing slurry are launched. Along with the deliquescence degree of CLBO is fallen to lowest. A brand new Operating technologies is also adopted. After tough polishing, the focus of ultra-precision sprucing slurry is greater appropriately. So does the ultra-precision sprucing speed, and the wiping pace is faster when compared to the deliquescence pace. The CLBO crystal surface area roughness can accomplish 1nm and hold the surface area top quality effectively. Access as a result of your institution
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Based on the proof-of-theory experiment, the conversion performance of 23% implied the opportunity of acquiring higher-electrical power at the next Stokes wavelength on the Raman laser. If your pump laser of 1078 nm can be attained at the average electricity of 50 W, the output electrical power of its 2nd Stokes wavelength at 1512 nm might be more than ten W. The look with the Raman laser cavity need to be optimized so that you can avoid the damage with the M1 and diamond surface area.
The average electric power from the NIR laser however has the potential to generally be improved to tens of watts including 70 W [26] Should the double-pass configuration could possibly be used for that Yb:YAG SCF amplifier phase. Therefore, In the event the conversion efficiency of 31% from NIR to DUV may very well be nevertheless preserved at this better power situation, the typical output energy from the DUV laser at 258 nm could possibly be over 20 W, which might become a impressive electric power amount for that DUV laser and cause the unanticipated DUV laser machining final results. Furthermore, for top-electricity DUV laser, the UV harm of your nonlinear crystal, including the Home windows for CLBO crystal and also the mirrors, is yet another vital parameter for long-lasting and stable Procedure.
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Due to thermal lens impact inside the reliable-point out lasers, If your heating administration is inadequate, it is not effortless to acquire the reliable-condition laser which has a high ability in addition to a superior beam high-quality simultaneously. Lately, with the event of The skinny disk laser and solitary-crystal fiber (SCF) laser, a significant-ability laser at the elemental wavelength (1 μm) were recognized with a fantastic beam excellent Despite having a TEM00 manner beam [four,24], which would be fantastic candidates for the basic on the DUV laser era. An additional candidate for the basic may be the higher-power fiber laser which may be accomplished by coherent beam mix with M2 worth less than one.
On the other aspect, the ability scaling of your NIR laser is an additional aspect to raise the normal electricity of the 193-nm DUV laser. Due to lack of the large-electric power amplification solution in the NIR laser (such as at 1553 nm), nonlinear frequency procedures like optical parameter oscillation (OPO) may be placed on build a wavelength converter by shifting the wavelength from 1 μm to the desired wavelength along with getting relative bigger power [21]. Lately, a diamond Raman laser showed its skill in acquiring a superior ability in addition to a significant conversion effectiveness with the 1st Stokes with the 1-μm laser [22,23], which implies the chance to be used while in the 193-nm DUV laser generation because of its superior Raman obtain and enormous frequency shift.
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The beam profile revealed in Figure 7b shown a great beam high-quality as one of several deserves of Raman laser, which would be beneficial to make a 193-nm DUV laser with a high quality beam.
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