Optical fiber device, optical monitor and optical switch

Details Optical fiber device, optical monitor and optical switch Optical fiber device, optical monitor and optical switch

2007-12-25

2007-12-25

Font, Frank G. (Department: 2883)

Optical waveguides

With optical coupler

Input/output coupler

C385S024000, C385S039000, C385S044000, C385S047000, C385S050000

Reexamination Certificate

active

11046780

ABSTRACT:
In order to enable coupling two multi-mode optical fibers with relatively high efficiencies while increasing the distance between lenses to be interposed as compared with the prior arts, with a device according to the present invention, a first condenser lens and a second condenser lens are arranged such that they are spaced apart from each other by four times the focal length and their optical center axes are coincident with each other. A first (second) multi-mode optical fiber is arranged such that it is spaced apart from the first (second) condenser lens by a distance larger than the focal length and the center axis of light emitted from the first (second) multi-mode optical fiber is substantially coincident with the optical center axis of the first (second) condenser lens.

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