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Proceedings Paper

Radiation sensitivity of fiber optic couplers
Author(s): Henning Henschel; Otmar Koehn; Hans Ulrich Schmidt
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Paper Abstract

In order to estimate the radiation sensitivity of a data transmission system based on optical fibers, the radiation-induced loss of other included passive components has to be known, too. We have irradiated (at room temperature) a variety of couplers made by different manufacturers at a 60Co source with a dose rate of 1300 rad(SiO2)/min up to a total dose of 106 rad(SiO2$. Most of them were fabricated by the Fused Biconical Taper process of 200/280 micrometers multimode step index fibers (tested at (lambda) equals 850 nm), and of 10/125 micrometers single mode fibers (tested at (lambda) equals 1300 nm and (lambda) equals 1550 nm). Couplers with 50/125 micrometers gradient index fibers (tested at (lambda) equals 850 nm and (lambda) equals 1300 nm) were also among them. The measured coupler inherent losses were between about 0.01 dB (fused coupler, high OH MM step index fibers, (lambda) equals 865 nm) and about 50 dB (coupler made of GRIN lenses, (lambda) equals 865 nm).

Paper Details

Date Published: 25 February 1993
PDF: 13 pages
Proc. SPIE 1791, Optical Materials Reliability and Testing: Benign and Adverse Environments, (25 February 1993); doi: 10.1117/12.141161
Show Author Affiliations
Henning Henschel, Fraunhofer-INT (Germany)
Otmar Koehn, Fraunhofer-INT (Germany)
Hans Ulrich Schmidt, Fraunhofer-INT (Germany)

Published in SPIE Proceedings Vol. 1791:
Optical Materials Reliability and Testing: Benign and Adverse Environments
Roger A. Greenwell; Dilip K. Paul, Editor(s)

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