Getting My CLBO Crystal To Work
Getting My CLBO Crystal To Work
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All-stable-point out ultraviolet lasers have been commonly used in the fields of mechanical flaw detection, lithography, micromachining and medication for some great benefits of tiny volume, long lifestyle, large effectiveness, excellent beam quality, huge tuning and narrow spectral line, and many others. Employing high energy in close proximity to-infrared coherent light-weight resource as the elemental frequency source based on nonlinear tuning technologies, making ultraviolet coherent radiation by multistage frequency conversion is regarded as a significant method to create the ultraviolet coherent mild supply.
When compared to BBO it functions larger spectral and temperature acceptance, superior angle tolerance, and also a more compact walk-off angle. from 3289 $ supply
Based on the proof-of-basic principle experiment, the conversion effectiveness of 23% implied the possibility of achieving higher-electrical power at the 2nd Stokes wavelength in the Raman laser. When the pump laser of 1078 nm might be attained at the typical electricity of fifty W, the output electrical power of its 2nd Stokes wavelength at 1512 nm could be over ten W. The design of the Raman laser cavity really should be optimized to be able to stay away from the problems of the M1 and diamond surface.
The standard energy from the NIR laser still has the likely to become enhanced to tens of watts like 70 W [26] if the double-pass configuration may be utilized with the Yb:YAG SCF amplifier phase. As a result, In the event the conversion effectiveness of 31% from NIR to DUV may be nonetheless managed at this larger ability issue, the normal output electric power in the DUV laser at 258 nm may be greater than 20 W, which might certainly be a outstanding energy degree for the DUV laser and bring about the unanticipated DUV laser machining effects. Furthermore, for prime-ability DUV laser, the UV damage on the nonlinear crystal, including the Home windows for CLBO crystal as well as mirrors, is another crucial parameter for lasting and stable operation.
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Both more info the 1040 nm and 1078 nm laser come from a person twin-wavelength Yb-doped fiber laser. Just about every laser is amplified by levels of fiber amplifier and Yb-doped supplies amplifier, respectively.
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The heart beat duration of the 2nd Stokes mild was shortened to five ns as demonstrated in Determine 7a, an individual-shot picture through the oscilloscope, that is a typical phenomenon in Raman laser [forty four] though the heartbeat period from the pump laser was ten ns.
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The beam profile revealed in Determine 7b shown a good beam top quality as one of several merits of Raman laser, which would be useful to crank out a 193-nm DUV laser with a top quality beam.
Its UV absorption edge reaches 180 nm. The helpful nonlinear optical coefficient of CLBO for frequency doubling at 1064nm is about two times as large as that of KDP. CLBO crystals might be grown through the stoichiometric melt with decrease viscosity.
The event of the 193-nm laser was shown by levels of SFG. In order to scale the DUV laser electrical power proficiently, a new idea on the 193-nm DUV laser technology is introduced dependant on the diamond Raman laser.