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Versatile Multifiber Optical Connectivity Solution: From Concept to Realization

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5 Author(s)
Kunde, J. ; Central Switzerland Center, CSEM Centre Suisse d''Electronique et de Microtechnique SA, Alpnach ; Bauknecht, R. ; Krahenbuhl, R. ; Niedermann, P.
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Multifiber interconnection technology is one of the important keys to increase package density in optical networks. We present a novel releasable multifiber optical connectivity solution from the initial concept to the functional prototypes. This connectivity solution relies on a V-groove alignment platform and a microlens array. It can, e.g., provide reliable connections between a fiber array and an active optoelectronic component array or between a fiber array and an optical waveguide device. Moreover, within a free-space propagation region, it provides access to collimated optical beams, thus enabling various light manipulation options. The microlens V-groove fabrication process makes use of a dedicated assembly station that has been designed for automation. The microlens array is positioned on the platform, aligned relative to the V-grooves, and fixed with a low-cost adhesive bonding technology. Uniform and stable low losses for fiber-to-fiber coupling via two lenses have been achieved for single-mode and multimode fibers at wavelengths of 850, 1300, and 1550 nm. This connectivity solution represents, therefore, a versatile cost-effective technology for releasable connections of fiber arrays to any other optical multiport device

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Lightwave Technology, Journal of  (Volume:25 ,  Issue: 2 )