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Proceedings Paper

Modular lensed-ferrule solution for single-mode fiber connectors
Author(s): Andrea Tonini; Victor Coggi
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Paper Abstract

The growing deployment of optical fiber in industrial, avionic, military and transportation applications, is leading to the increasing use of optical connectors requiring low insertion loss and mating workability. Connector contaminants are the main cause of power loss and signal degradation and the continuous need of cleaning services is a disadvantage for the fast replacement of copper wiring. Therefore, there is an increased need for reliable and maintenance-free optical connectors with insensitivity to dust, especially in a harsh environment. For this purpose, a novel and unique modular, single-mode lensed ferrule has been developed. Its compact form-factor fits into standard connectors bodies (E2000, MPO …) and enables the insensitivity to dust and mating-cycles reliability typical of bulky harsh environment lensed connectors. It is known that the alignment accuracy between a fiber and a lens must be under 1 um in order to attain acceptable insertion losses, which is particularly difficult to obtain. The use of exceedingly precise components and novel assembly techniques has made it possible, keeping ultra-low mechanical tolerances in the processing of ceramics and opto-mechanical parts. The result is highly repeatability and low insertion loss compared to standard state-of-the-art harsh-environment lensed connectors found in the field today. This opens new perspectives in the context of optical connections, where mating-cycles, insensitivity to dust, reliability and low losses ease the transition from copper to fiber. Furthermore, it enables new solutions for industrial data transmission and laser technology for many different applications in the field of spectroscopy, lidars, rotatory joints and much more.

Paper Details

Date Published: 28 February 2020
PDF: 10 pages
Proc. SPIE 11286, Optical Interconnects XX, 112860G (28 February 2020); doi: 10.1117/12.2544272
Show Author Affiliations
Andrea Tonini, Diamond SA (Switzerland)
Victor Coggi, Diamond SA (Switzerland)


Published in SPIE Proceedings Vol. 11286:
Optical Interconnects XX
Henning Schröder; Ray T. Chen, Editor(s)

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