Share Email Print
cover

Proceedings Paper

Fiber-delivery system for high-power UV-A lightsources
Author(s): Sascha Bohnert; Karl-F. Klein; Dieter Dinges; Wolfgang Fürstenberg; Demetri Kalymnios
Format Member Price Non-Member Price
PDF $14.40 $18.00
cover GOOD NEWS! Your organization subscribes to the SPIE Digital Library. You may be able to download this paper for free. Check Access

Paper Abstract

For medical and analytical applications, thick-core fibers are widely spread. For special applications in the UV-A region, flexible and inexpensive fibers with high transmission in this wavelength region are required. On the other hand, new high-power UV-A light sources (LEDs, laser-diodes) are available in this wavelength region. Although silica-based UV-fibers are mainly used over the full UV-range, there are two additional candidates for the UV-A region: the Polymer Optical Fiber (POF) and the Polymer Clad Silica Fiber (PCSF). Especially, the higher flexibility of the thick-core POF is superior in comparison to silica fibers with the same outer diameter. However, UV-induced losses exist in these fibers, too, using UV-light sources with significant power below 350 nm wavelength. However, the UV-damage with UV-light above this wavelength is significantly reduced; test results with high-power 365 nm UV-LED and 375 nm laserdiodes will be shown and discussed. On the other hand, the entire fiber-optic system, including the light-source, will be characterized. Especially the coupling efficiency between the light-source and the fibers was studied theoretically and experimentally.

Paper Details

Date Published: 15 February 2006
PDF: 12 pages
Proc. SPIE 6083, Optical Fibers and Sensors for Medical Diagnostics and Treatment Applications VI, 60830T (15 February 2006); doi: 10.1117/12.668027
Show Author Affiliations
Sascha Bohnert, Univ. of Applied Sciences Giessen-Friedberg (Germany)
Karl-F. Klein, Univ. of Applied Sciences Giessen-Friedberg (Germany)
Dieter Dinges, Omicron Laserprodukte GmbH (Germany)
Wolfgang Fürstenberg, Omicron Laserprodukte GmbH (Germany)
Demetri Kalymnios, London Metropolitan Univ. (United Kingdom)


Published in SPIE Proceedings Vol. 6083:
Optical Fibers and Sensors for Medical Diagnostics and Treatment Applications VI
Israel Gannot, Editor(s)

© SPIE. Terms of Use
Back to Top