New Step by Step Map For CLBO Crystal
New Step by Step Map For CLBO Crystal
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Having said that, so that you can system the crystal is rather State-of-the-art production methods are required. Considering that the dawn of this crystal, engaged on this challenge, we at the moment are the only corporation on earth that could be processed Within this crystal.
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We summarized the current progress status on the significant-electrical power DUV laser both for the wavelength of FHG from the one-μm laser and at 193 nm. The current enhancement in the good-state/fiber laser, together with the nonlinear optical crystals, prompts not merely the typical ability but in addition the beam quality (coherence) on the DUV lasers to an unparalleled level.
The standard ability of your NIR laser even now has the opportunity being enhanced to tens of watts including 70 W [26] In the event the double-move configuration could be used with the Yb:YAG SCF amplifier phase. Consequently, if the conversion performance of 31% from NIR to DUV can be even now taken care of at this greater electric power condition, the normal output electric power on the DUV laser at 258 nm may be a lot more than twenty W, which would be a amazing ability level for that DUV laser and result in the unanticipated DUV laser machining benefits. What's more, for high-electricity DUV laser, the UV destruction of the nonlinear crystal, including the Home windows for CLBO crystal as well as mirrors, is yet another crucial parameter for long lasting and stable Procedure.
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Both equally the 1040 nm and 1078 nm laser originate from one particular dual-wavelength Yb-doped fiber laser. Each laser is amplified by levels of fiber amplifier and Yb-doped materials amplifier, respectively.
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From the scientific and industrial apps, the beam high-quality of your DUV laser is usually a very important parameter. Significantly, the beam high-quality of your DUV laser considerably impacts the laser machining outcomes. The beam quality with the DUV laser is set by that of the elemental laser plus the crystal with the frequency conversion. A short while ago, a superior-electricity DUV laser (>10 W) at 258 nm was described having a beam high-quality of M2 < 1.five, which was created by FHG of the Yb:YAG laser at 1030 nm utilizing the CLBO crystal [13]. This laser would bring on a much better laser machining final result when compared with the prior DUV lasers with more substantial M2.
The pulse period of the next Stokes light was shortened to five ns as proven in Determine 7a, one-shot image from the oscilloscope, that is a typical phenomenon in Raman laser [44] even though the pulse duration on the pump laser was ten ns.
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The conversion efficiency from essential NIR to DUV is from 5% to 36% in accordance with the described results in Desk 1. Rising the conversion efficiency will decrease the burden on the look and set up of the fundamental laser amplifier and also the electric electric power consumption. A superb beam quality of the fundamental laser may even add to the growing on the conversion effectiveness and the right power depth in the NIR and inexperienced laser from the SHG and FHG course of action, respectively. The best conversion efficiencies from NIR to inexperienced and inexperienced to DUV laser by utilization of CLBO crystal are 70% and close to 50%, respectively [twelve], which corresponds to your conversion efficiency of 35% from essential to DUV.
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