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Proceedings Paper

Fiber optic systems in the UV region
Author(s): Michael Huebner; H. Meyer; Karl-Friedrich Klein; G. Hillrichs; Martin Ruetting; M. Veidemanis; Bernd Spangenberg; James P. Clarkin; Gary W. Nelson
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Paper Abstract

Mainly due to the unexpected progress in manufacturing of solarization-reduced all-silica fibers, new fiber-optic applications in the UV-region are feasible. However, the other components like the UV-sources and the detector- systems have to be improved, too. Especially, the miniaturization is very important fitting to the small-sized fiber-optic assemblies leading to compact and mobile UV- analytical systems. Based on independent improvements in the preform and fiber processing, UV-improved fibers with different properties have been developed. The best UV-fiber for the prosed applications is selectable by its short and long-term spectral behavior, especially in the region from 190 to 350 nm. The spectrum of the UV-source and the power density in the fiber have an influence on the nonlinear transmission and the damaging level; however, hydrogen can reduce the UV-defect concentration. After determining the diffusion processes in the fiber, the UV-lifetime in commercially available all-silica fibers can be predicted. Newest results with light from deuterium-lamps, excimer- lasers and 5th harmonics of Nd:YAG laser will be shown. Many activities are in the field of UV-sources. In addition to new UV-lasers like the Nd:YAG laser at 213 nm, a new low- power deuterium-lamp with smaller dimensions has been introduced last year. Properties of this lamp will be discussed, taking into account some of the application requirements. Finally, some new applications with UV-fiber optics will be shown; especially the TLC-method can be improved significantly, combining a 2-row fiber-array with a diode-array spectrometer optimized for fiber-optics.

Paper Details

Date Published: 3 May 2000
PDF: 10 pages
Proc. SPIE 3911, Biomedical Diagnostic, Guidance, and Surgical-Assist Systems II, (3 May 2000); doi: 10.1117/12.384918
Show Author Affiliations
Michael Huebner, Fachhochschule Giessen-Friedberg (Germany)
H. Meyer, Fachhochschule Giessen-Friedberg (Germany)
Karl-Friedrich Klein, Fachhochschule Giessen-Friedberg (Germany)
G. Hillrichs, Fachhochschule Merseburg (Germany)
Martin Ruetting, Fachhochschule Merseburg (Germany)
M. Veidemanis, Fachhochschule Merseburg (Germany)
Bernd Spangenberg, Fachhochschule Offenberg (Germany)
James P. Clarkin, Polymicro Technologies LLC (United States)
Gary W. Nelson, Polymicro Technologies LLC (United States)

Published in SPIE Proceedings Vol. 3911:
Biomedical Diagnostic, Guidance, and Surgical-Assist Systems II
Tuan Vo-Dinh; Warren S. Grundfest M.D.; David A. Benaron M.D., Editor(s)

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