All-sound-state ultraviolet lasers have already been broadly used in the fields of mechanical flaw detection, lithography, micromachining and medication for the benefits of tiny volume, long lifestyle, high performance, fantastic beam high quality, huge tuning and slim spectral line, and many others. Utilizing high ability close to-infrared coherent gentle source as the fundamental frequency resource based on nonlinear tuning know-how, building ultraviolet coherent radiation by multistage frequency conversion is viewed as a vital method to acquire the ultraviolet coherent mild supply.
Compared to BBO it capabilities bigger spectral and temperature acceptance, improved angle tolerance, as well as a scaled-down walk-off angle. from 3289 $ delivery
We summarized The existing advancement standing from the large-electric power DUV laser equally on the wavelength of FHG of the one-μm laser and at 193 nm. The latest improvement of your reliable-state/fiber laser, as well as the nonlinear optical crystals, prompts not just the normal electric power but also the beam good quality (coherence) with the DUV lasers to an unparalleled level.
The normal electricity from the NIR laser even now has the opportunity to become improved to tens of watts which include 70 W [26] If your double-pass configuration can be utilized for the Yb:YAG SCF amplifier stage. Therefore, if the conversion effectiveness of 31% from NIR to DUV can be continue to taken care of at this increased energy affliction, the typical output electric power on the DUV laser at 258 nm could be much more than 20 W, which would be described as a extraordinary power stage for that DUV laser and more info produce the unanticipated DUV laser machining results. Moreover, for top-energy DUV laser, the UV harm from the nonlinear crystal, including the Home windows for CLBO crystal as well as mirrors, is yet another crucial parameter for long-lasting and secure Procedure.
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Due to thermal lens influence from the stable-condition lasers, In the event the heating management is inadequate, It's not at all straightforward to acquire the sound-point out laser with a substantial power and also a superior beam top quality at the same time. Lately, with the development of The skinny disk laser and one-crystal fiber (SCF) laser, a high-electricity laser at the elemental wavelength (one μm) were understood with a superb beam high-quality even with a TEM00 mode beam [4,24], which might be good candidates for the fundamental in the DUV laser technology. An additional candidate for the basic would be the substantial-electricity fiber laser which may very well be attained by coherent beam combination with M2 benefit a lot less than one.
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The beam profile demonstrated in Figure 7b demonstrated a great beam high quality as one of many merits of Raman laser, which would be beneficial to generate a 193-nm DUV laser with a top quality beam.
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