Optical backplane interconnect

G - Physics – 02 – B

Patent

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Details

G02B 6/42 (2006.01) G02B 6/28 (2006.01) G02B 6/38 (2006.01) G02B 6/43 (2006.01)

Patent

CA 2181336

An optical backplane interconnect comprises a backplane comprising parallel D-fibres (1) that form an optical bus embedded in a plastics substrate (15), which form a coupling with respective parallel D-fibres (23) at an angle .PHI. in a connecting block (21) that is mounted on a card (2). Circuit components on the card are connected by optical fibres (9) to the fibres in the connecting block. The card is held by connections (18, 19), and as the card is pushed into position, coupling means, comprising balls (25, 26) on the connecting block, self-aligns in groove (27) on the blackplane, to set the angle .PHI. between the fibres, to provide a controlled, reliable optical coupling.

Une interconnexion optique de fond de panier comporte un fond de panier pourvu de fibres D (1) qui forment un bus optique intégré dans un substrat (15) en plastique, ce qui forme un couplage avec d'autres fibres D parallèles (23) correspondantes sous un angle ? dans un bloc connecteur (21) monté sur une carte (2). Les composants de circuit de la carte sont reliés par des fibres optiques (9) aux fibres du bloc connecteur. La carte est maintenue par des connexions (18, 19) et, lorsqu'elle est enfoncée en place, des moyens de couplage, comprenant des billes (25, 26) situées sur le bloc connecteur, s'alignent automatiquement dans la rainure (27) du fond de panier, de façon à fixer l'angle ? entre les fibres pour assurer un couplage optique fiable et contrôlé.

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