The best Side of CLBO Crystal
The best Side of CLBO Crystal
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Nevertheless, in order to course of action the crystal is quite Innovative producing strategies are required. Considering that the dawn of the crystal, working on this problem, we are now the only real organization on earth that may be processed Within this crystal.
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In accordance with the proof-of-theory experiment, the conversion performance of 23% implied the potential of achieving substantial-electric power at the 2nd Stokes wavelength of the Raman laser. If the pump laser of 1078 nm could possibly be received at the normal electric power of fifty W, the output electric power of its 2nd Stokes wavelength at 1512 nm can be more than ten W. The design with the Raman laser cavity need to be optimized to be able to avoid the harm from the M1 and diamond surface.
The true secret difficulty of ultraviolet coherent light-weight resource mainly focuses on the development of nonlinear optical frequency conversion crystal in ultraviolet band. The nonlinear optical crystal has become the disorders for frequency transformation, so The expansion, dimensions, destruction resistance, conversion effectiveness and allowable parameter array of nonlinear optical crystal are necessary A lot more.
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Due to thermal lens influence from the stable-condition lasers, In the event the heating management is inadequate, It's not necessarily effortless to get the sound-state laser that has a superior electricity along with a significant beam top quality at the same time. Lately, with the event of The skinny disk laser and single-crystal fiber (SCF) laser, a higher-power laser at the basic wavelength (one μm) were understood with a fantastic beam quality In spite of a TEM00 manner beam [four,24], which would be excellent candidates for the basic of your DUV laser generation. Another candidate for the basic could be the superior-power fiber laser which may be realized by coherent beam blend with M2 worth under 1.
On one other facet, the ability scaling in the NIR laser is another aspect to enhance the normal electricity from the 193-nm DUV laser. Because of the deficiency of the superior-electric power amplification Resolution from the NIR laser (for example at 1553 nm), nonlinear frequency procedures like optical parameter oscillation (OPO) could be applied to establish a wavelength converter by shifting the wavelength from 1 μm to the specified wavelength in addition to acquiring relative greater electricity [21]. Just lately, a diamond Raman laser confirmed its capability in here obtaining a superior energy plus a significant conversion performance with the 1st Stokes of your one-μm laser [22,23], which means the chance to generally be used in the 193-nm DUV laser technology because of its higher Raman obtain and huge frequency shift.
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The heart beat duration of the next Stokes light-weight was shortened to 5 ns as demonstrated in Determine 7a, just one-shot photo in the oscilloscope, and that is a standard phenomenon in Raman laser [forty four] whilst the heartbeat period in the pump laser was ten ns.
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The beam profile demonstrated in Figure 7b demonstrated a superb beam quality as among the list of merits of Raman laser, which might be useful to make a 193-nm DUV laser with a high quality beam.
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The development in the 193-nm laser was shown by stages of SFG. So as to scale the DUV laser energy proficiently, a brand new principle in the 193-nm DUV laser technology is introduced according to the diamond Raman laser.