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Proceedings Paper

A Multipurpose Cross-Talk Sensor Using Multimode Optical Fibers
Author(s): S. Ramakrishnan; R.Th. Kersten
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Paper Abstract

The phenomenon of cross-talk between optical fibers is usually used in the development of optical directional couplers. Subject of this paper is the description of a versatile sensor using this phenomenon and its various applications in liquid level sensing, refractometry, thermodletry etc. 111. The sensing element, which is also a part of the transmitting and receiving fibers, can be located either between or at the end of these fibers. The configuration can be chosen according to the type of application and mechanical construction. It is possible to measure the cross-talk signal independent of transmission losses and also to monitor failure of the system due to breakage in the optical or electrical circuit.

Paper Details

Date Published: 12 November 1984
PDF: 6 pages
Proc. SPIE 0514, 2nd Intl Conf on Optical Fiber Sensors: OFS'84, (12 November 1984); doi: 10.1117/12.945066
Show Author Affiliations
S. Ramakrishnan, Fraunhofer-Institut fuer Physikalische Messtechnik (Germany)
R.Th. Kersten, Fraunhofer-Institut fuer Physikalische Messtechnik (Germany)

Published in SPIE Proceedings Vol. 0514:
2nd Intl Conf on Optical Fiber Sensors: OFS'84
Ralf Th. Kersten; Rainer Kist, Editor(s)

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