Gradient Index Rod Collimation Lens Devices for Enhancing Optical Fiber Line Performance Where the Beam thereof Crosses a Gap in the Line.
Patent, Filed 14 Dec 94, patented 22 Oct 96,
DEPARTMENT OF THE NAVY WASHINGTON DC
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A novel array of optical fiber beams collimator device, includes as novel components thereof an array of single beam collimator units. A housing is provided with a corresponding array of co-parallel lens bores between opposite sides of the housing. Each unit of the array of single beam collimator units is formed from a gradient index glass, rod type, collimation lens disposed in the corresponding lens bore with a reinforced terminal end section of an optical fiber attached by its end face to the end face of the lens at one of the sides of the housing. The lenses of the array of units all have a common length dimension of one quarter pitch plus a predetermined increment of length chosen for coupling maximum power through respective fiber optic lines. The terminal end sections of optical fiber attached to associated lenses of the array have their respective longitudinal axes in individual predetermined lateral spatial relationship to the central axes of their associated lens to produce couplement with generally collimated beams at the other side of the housing which are coparallel with the aforementioned axes.
- Fiber Optics and Integrated Optics