Method for controlling microbending induced attenuation...

G - Physics – 02 – B

Patent

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G02B 6/44 (2006.01) C03C 25/10 (2006.01) G02B 6/02 (2006.01)

Patent

CA 2483385

Method for controlling attenuation losses caused by microbending on the signal transmitted by an optical fiber comprising an internal glass portion, which comprises: a) providing a first coating layer of a first polymeric material to surround said glass portion; and b) providing a second coating layer of a second poymeric material to surround said first coating layer, wherein said first polymeric material has a hardening temperature lower than 10~ and an equilibrium modulus lower than 1.5 MPa.

L'invention concerne un procédé destiné à contrôler les pertes d'atténuation provoquées par une microcourbure sur le signal transmis par une fibre optique comprenant une partie de verre intérieure. Ce procédé consiste (a) à utiliser une première couche de revêtement d'un premier matériau polymère pour entourer la partie de verre, et (b) à utiliser une seconde couche de revêtement d'un second matériau polymère pour entourer cette première couche de revêtement, le premier matériau polymère présentant une température de durcissement inférieure à 10 ·C et un module d'équilibre inférieur à 1,5 MPa.

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