Side- and end-illumination of Polymer Optical Fibers in the UV-region

被引：1

作者：

Eckhardt, HS ^{[1
]}

Jüngling, B ^{[1
]}

Klein, KF ^{[1
]}

Poisel, H ^{[1
]}

机构：

[1] Univ Appl Sci Giessen Friedberg, D-61169 Friedberg, Germany

来源：

OPTICAL FIBERS AND SENSORS FOR MEDICAL APPLICATIONS III | 2003年 / 4957卷

关键词：

D O I：

10.1117/12.478064

中图分类号：

R318 [生物医学工程];

学科分类号：

0831 ;

摘要：

Since more than 2 decades, the polymer optical fiber (POF) based on PMMA is well known. A lot of applications were studied and initiated: in addition to data transmission, the automotive, lighting and sensor applications are of main interest. Due to the spectral attenuation and applications, light-sources like broadband metal-halide lamps and halogen lamps, or LEDs and laser-diodes are mainly used. Due to improvement in manufacturing of the standard step-index POF, the variations of the spectral attenuation in the blue region have been reduced. Therefore, the losses are acceptable for short-length applications in the UV-A region. Using different light-sources like high-power Xenon-lamp, deuterium-lamp or UV-LEDs, the UV-damage is an important factor. In addition to the basic attenuation, the UV-induced losses will be determined by experiment, in the interesting UV-A region. The higher flexibility of the thick-core POF is superior in comparison to silica or glass fibers with the same outer diameter. Therefore, the bending losses in the UV-region are important, too. For special applications in the medical field, side-illuminating fibers are highly accepted. The axial and spectral dependence on the lateral radiation pattern will be described, using a very thick fiber.

引用

页码：84 / 91

页数：8

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