CLBO Crystal Things To Know Before You Buy
CLBO Crystal Things To Know Before You Buy
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All-stable-point out ultraviolet lasers are greatly Employed in the fields of mechanical flaw detection, lithography, micromachining and drugs for some great benefits of smaller quantity, lengthy lifestyle, higher performance, superior beam excellent, extensive tuning and narrow spectral line, etc. Making use of large energy in the vicinity of-infrared coherent gentle source as the elemental frequency source based upon nonlinear tuning technology, creating ultraviolet coherent radiation by multistage frequency conversion is thought to be a very important method to acquire the ultraviolet coherent mild supply.
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According to the proof-of-theory experiment, the conversion performance of 23% implied the possibility of reaching substantial-ability at the 2nd Stokes wavelength of your Raman laser. If the pump laser of 1078 nm might be attained at the standard ability of fifty W, the output power of its 2nd Stokes wavelength at 1512 nm could be a lot more than 10 W. The design of the Raman laser cavity should be optimized in order to steer clear of the harm of the M1 and diamond floor.
For illustration, The present concave OC could be replaced by a airplane mirror which could mitigate the power density within the area of M1 and the diamond. Additionally, making use of significant damage threshold coatings for M1 and diamond would also Enhance the output electric power with no damages. Then, the NIR laser at the 2nd Stokes wavelength may very well be substantial sufficient, and its very good beam quality, to make the ultimate DUV laser at 193 nm with a large normal power.
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Both of those the 1040 nm and 1078 nm laser originate from one particular dual-wavelength Yb-doped fiber laser. Every laser is amplified by levels of fiber amplifier and Yb-doped elements amplifier, respectively.
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The pulse period of the second Stokes light-weight was shortened to 5 ns as revealed in Figure 7a, only one-shot image within the oscilloscope, that's a common phenomenon in Raman laser [44] though the pulse duration of the pump laser was 10 ns.
What's more, combining the sound-point out laser with other nonlinear process for instance stimulated Raman scattering, NIR lasers can be attained at new wavelengths with significant power and higher beam good quality, which was examined because of the evidence-of-basic principle experiment. This Raman laser plan delivers a completely new path click here to the higher-electric power DUV laser, especially on the wavelength of 193 nm.
The beam profile proven in Determine 7b shown a great beam good quality as one of the merits of Raman laser, which would be advantageous to create a 193-nm DUV laser with a high quality beam.
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