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Abstract
In this paper we present a review of different micro-lenses we have developed at the end of single-mode fibers for improving optical coupling efficiency in communication systems. These micro-lenses find their applications in laser-diodes or integrated waveguides to single mode fibers, fiber to detector coupling, or fiber-to-fiber interconnecting. More generally, the applications concern active or passive components to single mode fiber coupling. Three kinds of micro-lenses are considered whose fabrication process has been designed to be very simple and low cost. Some of them are produced by companies in Lannion such as IDIL Fibers Optiques.
Acknowledgments
The authors would like to thank all their colleagues in the CCLO team for their support. They would also like to thank Irène and Michel Joindot from FOTON and Nicholas Traynor from PERFOS for their relevant suggestions. This work is supported by the “Communauté d'Agglomération Lannion-Trégor,” the “Département des Côtes d'Armor,” the “Région Bretagne,” and the European Community (FEDER).