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Proceedings Paper

End coating on optical fibers for multiplexers-demultiplexers in optical communications
Author(s): Robert Richier; Catherine Grezes-Besset; Emile P. Pelletier
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Paper Abstract

Economical multiplexers-demultiplexers can be made from cut optical fibers coated at their ends with multidielectric filters and then put together. An optical multilayer deposited at the end of a fiber has a spectral response which is different from that obtained when the multilayer is classically used in oblique incidence. We show that it is possible to forecast the multi- demultiplexer performances on multimode fibers with a numerical model using a divergent beam of angular width `a' at a mean incidence `i.' As we know the design of the multilayer used, we can correctly predict the cross-talk and the losses of multi-demultiplexers. Then we show how a series of different experiments are exploited for this study. Nevertheless, the development of a higher selectivity spectral filter and the use of a single mode fiber necessitate further improvement concerning the test for the validity of the model used.

Paper Details

Date Published: 4 March 1993
PDF: 9 pages
Proc. SPIE 1782, Thin Films for Optical Systems, (4 March 1993); doi: 10.1117/12.141018
Show Author Affiliations
Robert Richier, Ecole Nationale Superieure de Physique de Marseille (France)
Catherine Grezes-Besset, Ecole Nationale Superieure de Physique de Marseille (France)
Emile P. Pelletier, Ecole Nationale Superieure de Physique de Marseille (France)


Published in SPIE Proceedings Vol. 1782:
Thin Films for Optical Systems

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