Fiber coupler, system and associated methods for reducing...

Details Fiber coupler, system and associated methods for reducing... Fiber coupler, system and associated methods for reducing...

G - Physics

02

B

G02B 6/42 (2006.01)

Patent

CA 2403682

An apparatus which couples light to a fiber from a light source at an input plane while reducing back reflections includes returning light reflected back through such that the returning light does not substantially overlap with an output of the light source in the input plane. This apparatus may include a mode matching element and/or an angular distribution altering element. The apparatus may be reciprocal. The reciprocal apparatus may prevent light traversing the apparatus again having a change in phase of light from substantially overlapping an original object in an input plane.

L'invention concerne un appareil permettant de coupler à une fibre la lumière émanant d'une source lumineuse au niveau d'un plan d'entrée, et de réduire dans le même temps les rétroréflexions par le renvoi en arrière de la lumière réfléchie, de manière que la lumière renvoyée ne se superpose pas trop à une sortie de la source lumineuse dans le plan d'entrée. L'appareil selon l'invention peut comporter un élément d'appariement de modes et/ou un élément de modification de la distribution angulaire. Ledit appareil peut être un appareil réciproque, qui permet d'empêcher que la lumière retraversant l'appareil avec une phase lumineuse modifiée ne se superpose trop à un objet d'origine dans un plan d'entrée.

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