Broadband fiber optic tap

G - Physics – 02 – B

Patent

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Details

G02B 6/28 (2006.01) G02B 6/14 (2006.01) G02B 6/42 (2006.01)

Patent

CA 2576969

A broadband optical fiber tap (100) for transferring optical energy out of an optical fiber (102) having an optical fiber with a primary (104) and secondary (122) microbends for the purpose of coupling optical energy into the higher- order modes of the fiber, and a reflecting surface (106) formed in the cladding of the fiber and positioned at an angle so as to reflect, by total internal reflection, higher-order mode energy away from the optical fiber. In the preferred embodiment, the two microbends are spaced apart by a distance approximately equal to one-half of the intermodal beat length for LP01 and LP11 modes of a single-mode fiber.

Prise à fibres optiques à large bande pour transfert d'énergie optique hors d'une fibre optique, comprenant une fibre optique comportant des microcourbures principale et secondaire en vue du couplage de l'énergie optique en modes à ordre plus élevé de la fibre, les surfaces réfléchissantes formées dans la gaine optique de la fibre et placées en un angle de manière à réfléchir, par réflexion interne totale, l'énergie en modes à ordre plus élevé s'éloignant de la fibre optique. Dans un mode de réalisation préféré, deux microcourbures sont séparées par une distance environ égale à la moitié de la longueur de battement intermodal pour les modes LP01 et LP11 d'une fibre monomode.

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