How Much You Need To Expect You'll Pay For A Good CLBO Crystal
How Much You Need To Expect You'll Pay For A Good CLBO Crystal
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We summarized The present improvement position with the superior-electricity DUV laser the two in the wavelength of FHG of the one-μm laser and at 193 nm. The modern improvement of the stable-state/fiber laser, as well as the nonlinear optical crystals, prompts not merely the typical electric power but also the beam good quality (coherence) on the DUV lasers to an unparalleled amount.
The key issue of ultraviolet coherent mild supply mainly concentrates on the event of nonlinear optical frequency conversion crystal in ultraviolet band. The nonlinear optical crystal is one of the situations for frequency transformation, so the growth, measurement, injury resistance, conversion effectiveness and allowable parameter variety of nonlinear optical crystal are essential more and more.
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Both the 1040 nm and 1078 nm laser come from one dual-wavelength Yb-doped fiber laser. Each laser is amplified by phases of fiber amplifier and Yb-doped materials amplifier, respectively.
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From the scientific and industrial programs, the beam top quality from the DUV laser can also be an essential parameter. Specially, the beam excellent on the DUV laser substantially affects the laser machining success. The beam excellent of your DUV laser is determined by that of the elemental laser as well as the crystal with the frequency conversion. Not long ago, a higher-ability DUV laser (>10 W) at 258 nm was noted which has a beam good quality of M2 < one.5, which was produced by FHG of the Yb:YAG laser at 1030 nm using the CLBO crystal [thirteen]. This laser would lead to an even better laser machining result in comparison to the former DUV lasers with greater M2.
The heart beat duration of the 2nd Stokes mild was shortened to five ns as demonstrated in Determine 7a, an individual-shot picture within the oscilloscope, and that is a common phenomenon in here Raman laser [forty four] although the heartbeat period from the pump laser was ten ns.
Cesium Lithium Borate (CsLiB6O10 or CLBO) is the simplest non-linear crystal which generates ultraviolet harmonics of your Nd:YAG essential laser wavelength. In order to enhance the damage threshold, minimal CLBO surface area roughness, by ultra-precision machining, is necessary. Since the CLBO crystal has effortless hydroscopic reaction and micro scratches in machining, extremely-exact machining on the CLBO crystal is actually a tough technological dilemma.
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Its UV absorption edge reaches 180 nm. The effective nonlinear optical coefficient of CLBO for frequency doubling at 1064nm is about 2 times as huge as that of KDP. CLBO crystals can be grown from the stoichiometric soften with lower viscosity.
The development on the 193-nm laser was shown by stages of SFG. In an effort to scale the DUV laser electrical power proficiently, a brand new notion of the 193-nm DUV laser technology is offered dependant on the diamond Raman laser.