CLBO Crystal Can Be Fun For Anyone
CLBO Crystal Can Be Fun For Anyone
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All-sound-state ultraviolet lasers are extensively used in the fields of mechanical flaw detection, lithography, micromachining and drugs for some great benefits of tiny quantity, prolonged lifetime, substantial efficiency, good beam quality, huge tuning and slender spectral line, and many others. Making use of significant ability in the vicinity of-infrared coherent gentle supply as the elemental frequency supply based upon nonlinear tuning technological know-how, generating ultraviolet coherent radiation by multistage frequency conversion is viewed as a crucial way to establish the ultraviolet coherent mild supply.
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The key difficulty of ultraviolet coherent light-weight source largely concentrates on the event of nonlinear optical frequency conversion crystal in ultraviolet band. The nonlinear optical crystal is one of the circumstances for frequency transformation, so the growth, size, damage resistance, conversion efficiency and allowable parameter range of nonlinear optical crystal are essential Progressively more.
However, the beam high quality of the larger power DUV laser would develop into even worse due to a lot more major thermal and nonlinear effects. That's why, the frequency conversion procedures need to be very carefully built to mitigate the aforementioned consequences. Thus, a higher-electrical power DUV laser with the FHG of one μm with a superb beam excellent can be attained and may be beneficial for getting the shorter wavelength DUV lasers such as 193 nm by SFG.
Each the 1040 nm and 1078 nm laser come from 1 twin-wavelength Yb-doped fiber laser. Each laser is amplified by levels of fiber amplifier and Yb-doped resources amplifier, respectively.
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The heartbeat period of the second Stokes light-weight was shortened to 5 ns as demonstrated in Figure 7a, one-shot image within the oscilloscope, which happens to be a typical phenomenon in Raman laser [forty four] whilst the heartbeat duration with the pump laser was ten ns.
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The beam profile revealed in Figure 7b demonstrated a superb beam good quality as one of many merits of Raman laser, which would be advantageous to create a 193-nm DUV laser with a high quality beam.
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