The smart Trick of CLBO Crystal That Nobody is Discussing
The smart Trick of CLBO Crystal That Nobody is Discussing
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Nevertheless, as a way to system the crystal is very Innovative producing approaches are required. Because the dawn of this crystal, focusing on this obstacle, we at the moment are the one firm on the planet that could be processed On this crystal.
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We summarized the current progress status with the high-electric power DUV laser the two at the wavelength of FHG in the one-μm laser and at 193 nm. The current enhancement from the stable-point out/fiber laser, in addition to the nonlinear optical crystals, prompts don't just the average electrical power and also the beam high-quality (coherence) from the DUV lasers to an unprecedented stage.
The key challenge of ultraviolet coherent light source mainly concentrates on the event of nonlinear optical frequency conversion crystal in ultraviolet band. The nonlinear optical crystal is one of the disorders for frequency transformation, so The expansion, dimensions, hurt resistance, conversion efficiency and allowable parameter variety of nonlinear optical crystal are expected more and more.
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On the opposite aspect, the power scaling on the NIR laser is yet another part to improve the ordinary electrical power from the 193-nm DUV laser. Due to not enough the high-electrical power amplification Alternative in the NIR laser (one example is at 1553 nm), nonlinear frequency processes for instance optical parameter oscillation (OPO) might be placed on make a wavelength converter by shifting the wavelength from 1 μm to the specified wavelength in addition to obtaining relative bigger electricity [21]. Lately, a diamond Raman laser showed its potential in reaching a superior electrical power plus a high conversion performance for the 1st Stokes of the one-μm laser [22,23], which means the likelihood to generally be applied within the 193-nm DUV laser generation as a consequence of its high Raman achieve and huge frequency shift.
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Its UV absorption edge reaches 180 nm. The powerful nonlinear optical coefficient of CLBO for frequency doubling at 1064nm is about 2 times as large as that of KDP. CLBO crystals could be developed from the stoichiometric melt with lower viscosity.
The development with the 193-nm laser was shown by levels of SFG. In order to scale the DUV laser energy properly, a different thought of your 193-nm DUV laser technology is offered based upon the diamond Raman laser.