Connection between an integrated optical waveguide and an...

Details Connection between an integrated optical waveguide and an... Connection between an integrated optical waveguide and an...

G - Physics

02

B

G02B 6/30 (2006.01) G02B 6/36 (2006.01) G02B 6/42 (2006.01)

Patent

CA 2253511

The integrated optical waveguide comprises a layer of silicon (1) in which a rib waveguide (2) is formed separated from a substrate (4) by a layer of silicon dioxide (3). A V-groove (5) is formed in the substrate (4) for receiving an optical fibre (6) and arranged to align the optical fibre (6) at a predetermined angle to the waveguide (2). The rib waveguide (2) and underlying layer of silicon dioxide (3) are formed so as to overhang the end (5A) of the V-groove (5) so the end (2A) of the waveguide (2) is able to lie in close proximity with the end of an optical fibre (6) positioned in the V- groove (5).

Le guide d'ondes optique intégré est constitué d'une couche de silicium (1) dans laquelle est formé un guide d'ondes (2), sous forme de nervure, séparé d'un substrat (4) par une couche d'oxyde de silicium (3). Une rainure en V (5) est creusée dans le substrat (4) pour recevoir une fibre optique (6) et disposée de manière à aligner la fibre optique (6) selon un angle prédéterminé par rapport au guide d'ondes (2). Le guide d'ondes (2) et la couche d'oxyde de silicium (3) sous-jacente sont disposés de manière à surplomber l'extrémité (5A) de la rainure en V (5) et à permettre que l'extrémité (2A) du guide d'ondes (2) soit positionnée très près de l'extrémité d'une fibre optique (6) logée dans la rainure en V (5).

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