10 September 2004 Reliability of high-NA UV non-solarizing optical fibers
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A number of spectroscopic techniques make use of UV absorbance and luminescence measurements e.g. to characterize materials, for use in medical/pharmaceutical applications, for forensic and sensor applications, etc. Remote detection or monitoring, especially for hazardous environments, benefit from the use of optical fibers. Furthermore many high power applications in medicine and industry are looking to use UV wavelengths. All silica compositions are better able to provide transmission of uv wavelengths, however there have been limitations on their use. Numerical aperture and solarization of the fibers are main concerns. Fibers have been recently developed which can be used for extended periods of time at wavelengths from 193 to 400 nm without serious degradation of their transmission properties (non-solarizing) and with significant broader numerical apertures,[NA] of 0.26-0.30 allowing sampling of larger areas and greater collection of transmitted or reflected beams from materials under test. Mechanical and spectral properties for these new fibers will be presented and compared with the standard all silica fibers. This will include reliability test results at selected UV wavelengths. Possible application areas which would particularly benefit from these high NA, UV non-solarizing optical fibers will be suggested.
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Bolesh J. Skutnik, Bolesh J. Skutnik, Tilmann Trebst, Tilmann Trebst, Alexander Harschack, Alexander Harschack, } "Reliability of high-NA UV non-solarizing optical fibers", Proc. SPIE 5465, Reliability of Optical Fiber Components, Devices, Systems, and Networks II, (10 September 2004); doi: 10.1117/12.555589; https://doi.org/10.1117/12.555589

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