New Step by Step Map For CLBO Crystal
New Step by Step Map For CLBO Crystal
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We summarized The existing progress standing of the superior-energy DUV laser both equally at the wavelength of FHG of the 1-μm laser and at 193 nm. The recent advancement of your reliable-point out/fiber laser, plus the nonlinear optical crystals, prompts not merely the average electricity but also the beam good quality (coherence) with the DUV lasers to an unprecedented stage.
The normal electricity from the NIR laser nonetheless has the probable to get improved to tens of watts for example 70 W [26] In case the double-pass configuration could be utilized for the Yb:YAG SCF amplifier phase. Therefore, Should the conversion efficiency of 31% from NIR to DUV may be still preserved at this greater electric power problem, the standard output energy with the DUV laser at 258 nm could be over twenty W, which might certainly be a extraordinary energy degree for your DUV laser and bring on the unanticipated DUV laser machining results. Furthermore, for high-energy DUV laser, the UV harm from the nonlinear crystal, including the Home windows for CLBO crystal as well as mirrors, is an additional crucial parameter for long-term and secure Procedure.
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Both of those the 1040 nm and 1078 nm laser originate from a person twin-wavelength Yb-doped fiber laser. Every single laser is amplified by phases of fiber amplifier and Yb-doped components amplifier, respectively.
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The heartbeat duration of the 2nd Stokes gentle was shortened to five ns as demonstrated in Figure 7a, just one-shot photograph with the oscilloscope, which can be a typical phenomenon in Raman laser [44] when the pulse duration on the pump laser was 10 ns.
Cesium Lithium Borate (CsLiB6O10 or CLBO) is the best non-linear crystal which generates ultraviolet harmonics in the Nd:YAG fundamental laser wavelength. In order to enrich the hurt threshold, reduced CLBO area roughness, by ultra-precision machining, is necessary. Since the CLBO crystal has easy hydroscopic response and micro scratches in machining, ultra-specific machining in the CLBO crystal is a complicated specialized trouble.
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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 may be developed from your stoichiometric soften with reduced viscosity.
The event of the 193-nm laser was demonstrated by stages of SFG. To be able to scale the DUV laser electric power successfully, a different concept in the 193-nm DUV laser technology is introduced according to the diamond Raman laser.